List of problems solved by MacGyver

This is a list of problems that have been solved by the fictional character MacGyver from the television series of the same name. (This list is not yet comprehensive.) MacGyver employs his resourcefulness and his knowledge of chemistry, physics, technology, and outdoorsmanship to resolve what are often life-or-death crises. He spontaneously creates inventions from simple items to solve these problems. These inventions became synonymous with the character and were called MacGyverisms by fans. MacGyverisms became a distinct motif of the series. MacGyver was unlike secret agents in other television series and films because he carried only a Swiss Army knife and duct tape, instead of relying on high-tech weapons and tools.) MacGyver stops a pursuing boat by clogging the intake for the boat's inboard motor with a floating device made from a blanket, some rope, and jerrycans. To break out of a locked ward in a mental hospital, MacGyver uses the spring steel filament support wires from a light bulb as lock picks (This was tested on MythBusters and confirmed.). To distract a guard, MacGyver covers the rim of a bucket with caulk and adds "the proper hardening agent" to create a powerful adhesive. He attaches the bucket to a mop and makes it hang out of a closet, drawing the guard's attention. The guard picks it up and gets his hands stuck while MacGyver passes through.

To get rid of the armed guards, MacGyver and Pete decide to mildly sedate them. Pete poses as a doctor and breaks into the drug cabinet. He later gives them to a friend working in the cafeteria, who adds the drugs to the guards' drinks.

The Assassin (1x22)
MacGyver pretends to be Piedra in order to foil the upcoming assassination of a famous church figure, but ends up being followed by guards of the assassination target who think he is Piedra. While driving away from them, Mac encounters a one-way path with a spike strip in the way. He takes a nearby board of wood and places it in front of the spikes, allowing him to drive over them. He then removes the wood and the men following him drive through the strip, thus getting flat tires.

Later when caught by the guards, MacGyver is determined to prove his innocence by calling Pete to let his captor know that he isn't Piedra. The sole armed guard orders him to put the phone down, and so Mac puts the phone on top of a ruler on a desk. The other end of the ruler sticks over the desk, and MacGyver hits it. The ruler effectively catapulted the phone onto the guard, and so Mac acted quickly to steal his gun.

Season 2
The Human Factor (2x01)
MacGyver builds a telescope using a newspaper, a magnifying lens, and a watch crystal (the crystal covering). He rolls the magnifying lens and the crystal into the newspaper, making a telescope. In order to fake a hand print for electronic scanning, MacGyver spreads a thin layer of plaster dust over the scanner. Some of the dust sticks to the sweat left on the scanner by the previous user. He blows away the excess, covers the sensor plate with his jacket, and presses down lightly with his fingers. Macgyver uses a ladies room mirror shard, and janitor's mop and bucket to redirect a laser defense grid's lasers back into itself and destroy it.

As laser-wielding robots home in on his body heat, MacGyver creates a fake heat signature by using magnets wrapped in burning paper. He throws one piece of burning paper and magnet at each robot. The magnets stick to the metal of the robots. With each robot "tagged," they home in on each other and destroy one another.

The Eraser (2x02)
MacGyver repairs a post mix soda gun by bleeding off some built-up CO₂ that has caused a valve to stick. He takes off the button panel of the soda gun, removes the broken valve spindle and inserts a miniature pirate's sword from a plate of olives. Using the sword, he opens the valve to the CO₂ line fully, and draws out the sword, which lets it close naturally.[http://www.cornelius.com/stellent/groups/web/@guest/documents/manual/000892.pdf Terminology source]..

To break into a man's office, he first climbs the elevator shaft to avoid security. When at the door, MacGyver encounters an electronic door lock. He opens up part of the circuit board from outside and uses wire plugged into an outlet to overload the circuit. By doing so, he temporarily unlocks the door.

Mac later finds the man he needs to capture eating lunch with his girlfriend. MacGyver breaks into the girlfriend's car and opens up the car's phone. He attaches a wire linked to the car's locking system to the phone in such a way that hanging up or picking up the phone changes the car lock. When the man MacGyver is looking for enters the car, Mac calls the car phone. After the man hangs up, the doors lock and they are trapped. Only when MacGyver approaches them and tells them how to open it does he take the man into custody.

In order to escape from a room with an armed villain chasing from behind, he locks the door with a metal bar under the doorknob, and to open the opposing door, he fills a pipe with acetylene and places another blocked off pipe in as a projectile. When fired it batters down the door.

While being chased by assassins who want to kill his friends, MacGyver sets up a trick to make the enemies think they killed the target. He sets up two mirrors so that it looks like his friend is facing a window. When the assassins shoot at the mirror, the friend pretends to fall down dead. MacGyver uses rubber cement and a red dye to look like blood around a gunshot wound. When the enemies come to make sure the man is dead, MacGyver uses a comb and some aluminum foil to make the sound of a police siren, scaring them away.

Twice Stung (2x03)
To break through an apartment door, MacGyver ties a fire hose to the door handle and an elevator handrail, then sends the elevator down. He cuts the fire hose with his Swiss army knife, ties the nozzle end to the door, the other end to the hand rail, and lays the hose very flat against the ground so the elevator's doors won't close on it. When the elevator goes down, it pulls enough of the door with it that MacGyver can reach in and unlock the deadbolt and chain door lock.

With two hostile men breaking into his friend's house, MacGyver stuns the intruders with a flash from a photoflood bulb, allowing his friend and himself to escape. He takes the battery out of a normal, high-power flashlight and connects one of the wires from the flood light power cord to it. He cuts the other wire in the middle and strips both new ends. He attaches one end to the open terminal on the battery, and then he lays both ends near each other on the ground. He folds two matchbooks into triangles an inch high or so, and lays them near each exposed wire. He rests a metal letter opener on top of the two matchbooks. When the intruders step on the letter opener accidentally, the circuit is closed, and the lights flash.

The Wish Child (2x04)
MacGyver lights a fuse without a match by concentrating sunlight on the fuse with his watch crystal. He removes the crystal with his Swiss army knife and holds it so a fine point of light is focused at the fuse's end.

When blocked by a heavy door with a strong lock, MacGyver destroys the lock by igniting gunpowder inside of it. He pours gunpowder from gun cartridges into a small piece of cloth. He stuffs the wrapped-up powder into the lock and puts one cartridge in after it with the primer end sticking out a little to act as a fuse. He hits the primer with the butt of a gun, exploding the gunpowder and opening the door.

Final Approach (2x05)
In a particularly elaborate stunt, MacGyver builds a mud runway for a plane. This allows the plane, which has a punctured front tire, to take off, after replacing the wheel with a log that has a v-shape chiselled out on the inside and a smoothed half-circle outside. (The other two wheels ride on solid ground.) First the runway area is cleared of debris, then a 1 ft (30cm) trench is dug. The mud is filled in from a nearby river, carried in campers' backpacks. In order to align the runway, MacGyver builds a theodolite, a device used to sight straight lines. The theodolite is built from relatively straight tree branches and uses earrings as sight guides. The runway is 300 yards (274 m) long, and the plane is a five-passenger, single engine Cessna. To land the plane, he has an airport lay down foam.

Jack of Lies (2x06)
In order to stop a pursuing Jeep, MacGyver builds a bomb out of a fire extinguisher. He is in a plane that is being chased down a runway by several Jeeps. To stop one of them, he tapes two metal hooks to the outside of the extinguisher and removes the nozzle assembly. Then he launches it out of the plane with elastic ropes that cover the door. When the Jeep drives over the extinguisher, the hooks pierce the cylinder and it explodes.

The Road Not Taken (2x07)
To delay soldiers chasing him, MacGyver burns a string dipped in kerosene attached to a tin can. The resulting flame is bright enough to look like a fuse for a bomb, and the can is filled with animal fat which resembles an explosive.

When he needs to throw off some pursuers in the jungle, MacGyver builds a tree-based catapult to throw stones, and puts a light-based fuse on it. First he pulls four flimsy trees together and bends them down to the ground. He routes them under a solid tree branch and ties them together with a thin vine. Then he sets down his friend's rosary to refract sunlight onto the thin vine, creating a fuse. He stakes the thin vine into the ground with a good knot on a pointed stick, and attaches the pockets from his jacket (filled with rocks) to the tree trunks.

MacGyver creates a rocket-propelled flare out of bamboo, fertilizer, matches, a strip of cloth, a small tin can, a thin metal rod, a funnel, and a wooden spoon. The fertilizer has nitrates, which is the explosive. He packs the fertilizer in the bottom of the bamboo, then the matches, then the tin can which is itself packed with the cloth with a strip hanging out. He ties the spoon onto the side of the rocket with the metal rod used as a guide within the bamboo tube. The funnel is attached to the top of the rocket, to contain the explosion. The strip of cloth serves as the fuse, and then matches as the igniter. MacGyver sets the entire apparatus in a fireplace, where he lights the fuse and lets the rocket take off.

Eagles (2x08)
MacGyver destroys a building with a propane tank, a grindstone, and some ball bearings. He lets the gas from the tank loose and switches on the grindstone. From outside, he shoots the ball bearings into the building at the grindstone. Although he doesn't hit the grindstone, the bad guy he is after shoots a crossbow into the building, and does hit the grind stone. A spark ignites the gas, and the building is destroyed.

MacGyver builds an incubator for eagle eggs with padding from a chair and vegetable oil. He says that "the oil combines with the fibers in the padding to create a low level spontaneous combustion," generating heat.

Silent World (2x09)
MacGyver builds a time-delayed device to pull a switch out of water using plastic bags, sticks, and fishing line. He fills the two bags with equal amounts of water, and ties them to a straight stick. He balances the stick on a fulcrum made of two other sticks, and then attaches a fishing line from one water bag to the switch. He pokes a hole in that bag, letting the water slowly drain out, eventually making the whole apparatus tilt and pull the switch.

Three For the Road (2x10)
MacGyver fixes a broken fuel line with a ball point pen. The fuel line has a hole in it, so he cuts out the section with the hole completely. He then joins the two loose ends by sliding them over a portion of a disassembled ball point pen so they form a seal. The fuel flows through the hollow pen housing.

MacGyver builds a mortar out of a muffler, a small amount of gas, stuffing from a seat cushion, and a steering wheel knob to stop pursuers. He bends the end of the muffler, to contain the explosion, and stuffs seat cushion material into the bent end. He then pours gas on top of that, and finally packs in the steering wheel knob, which serves as the projectile. He pokes a hole in the bent end of the muffler and stuffs in a short length of cushion material, to provide a fuse. He lights it, aims, and shoots the knob at a chasing car.

To stun intruders, MacGyver rigs a circuit to blast a car horn when a door is opened. He connects a car battery to a car horn, with a metallic door handle acting as the switch. When the door is opened, the circuit is closed, the horn sounds, and the intruders are stunned.

Phoenix Under Siege (2x11)
MacGyver moves a New York lock from the opposite side of a door with an electromagnet. To build the magnet, he uses two 12-volt batteries as his power source, a sink faucet as the metal rod, and some copper cabling to wind around the faucet. He connects everything, and slides the lock out of place.

MacGyver defuses a bomb by sliding a ticket into the triggering mechanism.

Family Matter (2x12)
MacGyver busts open a steel window covering with some rope and a donkey engine. A donkey engine is a device used in the logging industry to move fallen trees. Part of the engine includes a belt that goes around a cylinder, which MacGyver replaces with a rope. He ties the opposite end of the rope to a steel bar that he slits between the crossbars on the window covering. Through the rope, at the end next to the engine, he splices a thin metal cable which he attaches to the ignition switch. That lets him wait next to the window, and when he's ready, turn on the engine by tugging the rope.

To throw his opponents off balance, MacGyver builds bombs out of swamp gas, bamboo shoots, and mud. MacGyver cuts several bamboo shoots, each just past the natural solid disc that is in bamboo every few feet. The disc, patched with mud, makes one solid end, and the other open end he puts just under the surface of the swamp water. He lets the gas build up inside the shoot for a little while, then caps it off with a wad of mud and a leaf. When he's ready to detonate the bombs, he lights the leaf, and eventually the gas explodes.

Soft Touch (2x13)
MacGyver breaks a padlock with magnesium alloy fragments, an iron pipe, some cloth, and a match. First he rolls up the cloth to fit snugly into the pipe, and pushes it down a few inches to make a stop. He gets the magnesium from the spokes of a wheelchair's lower wheel and stuffs it on top of the cloth, and then covers that with another cloth. He wedges the pipe into the end of the padlock and lights the cloth on fire, causing the iron to heat up and expand. As it expands, it weakens and finally breaks the lock.

Birth Day (2x14)
MacGyver creates a distress beacon out of a sail bag, marine signal flags, helium gas, and water. The point is to get help from someone far away, so he needs to send the flags their way. He first soaks the sail bag in water to make its surface less porous, so that it will retain helium gas. He then fills the bag with gas and seals it with a string. Dangling from the string, he attaches the signal flags - four in total, one for each letter of the word help.

Pirates (2x15)
In a rare unsuccessful MacGyverism, MacGyver fails to blow open a hatch with a bilge pump, a hose, and a dock buoy. MacGyver is stuck in the bilge of a ship that is taking on water. He has the idea that he can blow open the locked hatch by overfilling a buoy with water until it explodes. He pokes a hole in the buoy, inserts a tube, connects the end to the bilge pump, and fastens the buoy to the hatch with an angle brace. Unfortunately the buoy tears instead of exploding, causing the water to spill out and defeating the MacGyverism. MacGyver escapes from the predicament by finding a nearby tank of compressed gas and knocking open the valve, sending it shooting up through the hatch, blasting it open.

MacGyver safely detonates a land mine with a piece of string. The land mine is triggered by a rope which, when pulled on, arms it. When the rope is let loose, the mine goes off. MacGyver catches himself as he arms the land mine, and then ties a piece of string to the rope. He holds the rope taut, walks away from it, and finally lets it go off from a safe distance.

Out in the Cold (2x16)
MacGyver is trapped in an avalanche while skiing. He manages to signal a rescue team from beneath the snow with a ski pole and parts of his ski suit. He pulls the grip and point off of his ski pole, giving him a long hollow tube. He tears off some cloth from his ski suit in roughly a square shape, and then a long, narrow piece and his zipper pull. He ties the square into a parachute with the narrow piece and attaches the zipper pull to give it a weight. He feeds the whole bundle into his pole and blows it out the other end, which he has poked through the surface of the snow. A member of the nearby rescue team sees the parachute and saves him.

Using parts of a microscope and a drop of water, MacGyver is able to read microfilm. He uses the light from the microscope to backlight the film, and the drop of water is his magnifying glass. The viewing head on this microscope is broken and not used.

Dalton, Jack of Spies (2x17)
While being pursued by dirty CIA operatives at a strip club, MacGyver loads a confetti cannon with make-up powder and fires it at them as they enter a door, thus blinding the enemies with powder.

Partners (2x18)
Trapped in the driver's seat of a car with bazookas pointed at him, MacGyver needs to get out of the car and disable the bad guys all in one move. He removes his shoelaces and ties a lasso, using it to rope the gas pedal. He slips a paper clip onto the lace, secures it in a monkey wrench, and manipulates the wrench so it is braced between the floor and the brake pedal. This situates the lace so that when pulled on, it will pull down the gas pedal. Finally he routes the lace around the steering wheel on ties it to the door handle. The result is that when he gets out of the car, it will lurch forward and crash into the bad guys.

MacGyver needs to blow open a locked truck trailer door. He builds a bomb out of an oil can, a pair of pantyhose, an old exhaust pipe, and an old battery. He soaks the pantyhose in oil, which serves as the fuse. He threads that through the exhaust pipe, at the end of which he has packed shavings from the aluminum can. The idea is that "the ferrous oxide and the aluminum shavings should generate enough heat to explode the battery."

Bushmaster (2x19)
MacGyver creates a diversion with a rifle, a rock, some newspaper, a string, and a match. He hangs the rifle in a tree and ties the string around the rock and the trigger. The way it is tied, when the string is cut, the rifle will fire. He puts the newspaper next to the string and lights it, creating a fuse.

To break open a lock, MacGyver exposes it to Freon gas. The Freon comes from the back of a refrigerator, in a crimped pipe. MacGyver opens the pipe, lets the Freon freeze the lock, and is able to break it with a hard push.

With an old, bullet-ridden Jeep his only means of escape, MacGyver must patch up the Jeep's radiator to get it working again. Remarkably, he does the job with nothing but water and egg whites. First he dumps some water in the radiator and jump-starts the Jeep, causing the water to heat up. A few minutes later, he dumps in the egg whites, which the water cooks. Once cooked, the egg whites naturally plug the holes in the radiator, making the Jeep temporarily usable. (This technique was deemed Plausible in an episode of The Discovery Channel's MythBusters.) The trick was suggested by a fan of the series.

MacGyver is being tailed by goons in a car faster than his rail-bound vehicle. He builds a giant, road busting bomb out of gasoline, several types of ammunition, and tear gas. To light it, he rolls up some paper and strikes a piece of metal on the rail he is riding on, causing a spark.

D.O.A.: MacGyver (2x21)
MacGyver creates a thick fog out of ship hull cleaner and ammonia. Ship hull cleaner contains muriatic acid, which is used to clean algae off ships. It creates a fog when combined with ammonia. MacGyver fills two buckets, one with each chemical, and spreads liberally on the floor.

For Love or Money (2x22)
MacGyver distracts some goons by creating a smoke cloud out of carbon black (commonly known as soot), a helium tank, a latex lab glove, duct tape, and his pocket knife. The powder is stuffed in the glove, the glove has a slit and is inflated with the helium gas. MacGyver duct tapes the glove to the top and bottom of a food serving tray so that when it is opened, the glove will burst and the powder will be released.

MacGyver creates a bomb out of nitroglycerin tablets and alcohol. He crushes the tablets and mixes in the alcohol, creating a paste. He folds the paste up in two flat napkins and duct tapes the ends. To detonate the bomb, MacGyver throws a nondescript blunt object at it.

MacGyver protects his car with electricity using baling wire to zap soldiers that are trying to force him out of the vehicle. He runs the baling wire from the ignition coil to the frame of the car, and when the two soldiers put their hands on the door handles, he pushes the wire tightly against the frame, shocking them.

Season 3
Lost Love, part 1 (3x01)
MacGyver finds some security problems with an exhibition monitor by breaking into it using powdered industrial cleanser to the avoid the laser alarm system and his knife to pick the lock.

Lost Love, part 2 (3x02)
MacGyver and Jack Dalton manage to steal the Ming dragon from the exhibition monitor (see above). The monitor is now fortified with a combination lock, a patrolling guard every 10 minutes and a pressure plate alarm. First they enter above the monitor through the ventilations system. The entry has a pressure alarm silenced by some duct tape. They then use ropes to go down inside the laser perimeter. The monitor is attached to a winch with suction pads in the end of the wire holding it up and clamps were used to hold down the pressure pad. Since they run out of time, they finally use the remote-controlled winch to trap the guard with a snare.

Back From the Dead (3x03)
MacGyver uses a fire hose to slide across a high wire at stadium. He throws a spear to shatter a dial and hit the bad guys with steam.

Ghost Ship (3x04)
MacGyver fixes a broken rowing boat using a stick with a fork, a sleeping-bag cover, some ropes and a tarpaulin in order to get to a mysteriously abandoned ship. He puts the sleeping-bag cover over the fork of the stick in order to make a paddle. The stern of the boat is broken but is sealed using the tarpaulin and the rope.

Fire and Ice (3x05)
MacGyver opens a vault and steals back some diamonds first dusting the buttons for fingerprints with graphite from a pencil. The vault has a three-digit combination with unique digits and six buttons. The dusting narrows down the 720 combinations to 6 and the vault is easily opened. He then neatly gets the diamonds in a small bag using a paper as a funnel.

GX-1 (3x06)
MacGyver uses duct tape and a plastic mat to make a pair of boots.

MacGyver builds a hot air balloon from scratch to escape from a Soviet search party. The balloon was made of homemade super-glue, old clothes, a parachute, welding equipment, a refrigerator, condoms, and metal box.

Jack in the Box (3x07)
MacGyver creates a distraction in order to escape from a mining shaft using carbide lamps, water, some flint, a rope and a rock hammer. The carbide was put in the water which creates a reaction forming acetylene (welding gas). The gas is then ignited with the flint taped to the hammer. The rope is used to swing the hammer, leaving time to escape.

The Widowmaker (3x08)
MacGyver destroys a flamethrower by building an arc welder using a car battery (12 V), jumper cables and a radio antenna.

MacGyver taps into a phone wire and transfers an SOS-signal. First, he climbs up the pole using a rope and belt around his ankles. Then, he scrapes off the insulation of the phone wire with his knife. Finally, he taps in a message for help with a bracelet using the Morse code alphabet.

Hell Week (3x09)
MacGyver creates a smoke screen using acetic acid and ammonia found in a cleaning locker in order to blind an infra-red motion detector high-voltage trap-door preventing him from getting to the bomb.

MacGyver defuses a bomb set to detonate by tilting a plate of mercury which short-circuits two electrical wires using the heat from short-circuiting two wires from the elevator in order to vaporize the mercury during the last 20 s of the countdown.

Blow Out (3x10)
MacGyver makes tear-gas out of cayenne pepper, vinegar and baking soda. The vinegar contains acetic acid while the baking soda is sodium bicarbonate, mixed together, they form a lot of gas. MacGyver lets the gas expansion take place in a sealed rubber bag and when it starts to swell he puts a hole in the bag with his knife.

MacGyver takes a nearby paint can and secures it under the truck, then uses his Swiss Army knife to ream a hole in the bottom to leave paint splotches as the truck travels to the hideout, to track it's movement.

In order to stop a bomb from detonating in the middle of a street, MacGyver convinces a truck driver to fill up the terrorists' mail van bomb with concrete, limiting the blast of the dynamite.

Kill Zone (3x11)
MacGyver tightens a sealed lab compartment containing a dangerous microorganism using a Bunsen burner, a longer hose and Freon from a refrigerator. First he burns the leak using the longer hose with the Bunsen burner, and then he freezes it tight with the Freon.

MacGyver uses an electrical transformer to speed up the manual over-ride of the elevator in order to escape from an infected lab about to self-destruct.

Early Retirement (3x12)
MacGyver uses a steam pressure hose to make a smoke screen.

Thin Ice (3x13)
MacGyver fixes a compressor by replacing a broken spring with a battery holding spring from a flash light first cut off to fit.

The Odd Triple (3x14)
MacGyver gets himself out of a wine cellar where his hands are bound to a barrel of wine by first opening the tap of the barrel with his head soaking his hands with wine working as lubricant and then using the compressed gas in 4 nitrogen cylinders binding them to a giant wine barrel on wheels running it through the brick wall.

The Negotiator (3x15)
MacGyver stops a professional killer by draining fluid from the radiator, then short-circuiting it with some jump-start cables attached to the car's battery; this electrocutes the killer.

The Spoilers (3x16)
MacGyver creates a diversion and a surprise attack using an inner tube, pressurized air, chloride, a catalyst, two glass jars and a gas mask. The inner tube was put in a truck and filled with air until the glass broke creating a loud noise. Meanwhile MacGyver filled the two gas bombs filling one glass jar with chloride and the other with a catalyst. Then he threw them at his attackers resulting in a reaction producing toxic chlorine gas when the two liquids mixed.

Mask of the Wolf (3x17)
In order to escape from a booby trap in an old Indian temple MacGyver lifts a heavy oak door using ceremonial powder made of Copper and Zinc to pack a charge igniting it with a fuse made of a hemp belt dipped in lamp oil. The explosion in the piston lifted the door a few inches then Mac kept it open with a log enabling him and his friends to crawl out. (34.40) Note: The scene where Dalton reaches in for his hat is taken from a similar scene in Indiana Jones and the Temple of Doom

Rock the Cradle (3x18)
MacGyver fixes a jammed landing gear on an air plane by replacing the hydraulic fluid with pressure from an oxygen gas canister. He falls off the plane in the process but has a parachute so he lands safely.

MacGvyer also builds a swinging playpen out of hockey sticks, a rope net, and rope, and fastens a baby's diaper with duct tape.

The Endangered (3x19)
MacGyver sets up a trap using a forked branch, pegs and fishing line to shoot a tranquilizer dart into the leg of one of the bad guys.

MacGyver makes an assault using a decoy using rope, matches and a coat on a vine to set a time-delayed simulated "approach". When the hunters start shooting at the decoy, MacGyver shoots one of them using a slingshot made of a flashlight barrel and elastic cords from the jacket to shoot yet another tranquilizer dart.

Murderer's Sky (3x20)
MacGyver finds a secret door using hi-fi speakers and cables working as a sonar.

MacGyver knocks out two light bulbs by spraying them with hard surface cleaner. (This was tested and proven true by MythBusters)

Season 4
The Secret of Parker House (4x01)
After finding the skull of an unknown person under a recently destroyed gazebo, MacGyver, using the erasers from the tips of pencils, modeling clay, glass eyeballs and cotton wool, reconstructed the face of the skull.

Trapped in the basement with an exploding furnace, MacGyver and friends built a torpedo using a distiller and a sealed plugged pipe. The plugged pipe was put over the spot where gas was most likely to break out, a brass plate. A support made of two sticks and some rags was used to aim at the stone wall.

Blood Brothers (4x02)
MacGyver fixes a typewriter, from which the pin that holds the ribbon has broken off, with the ink cartridge from a ballpoint pen. He uses the ink cartridge to rethread the ribbon, as well as to hold it back in place, and then cuts the cartridge down to size with his Swiss Army knife.

In a flashback scene, a young MacGyver disassembles a bicycle and reassembles it as a makeshift cart in order to transport his wounded friend to a road where he can get help.

In a 'current timeline' scene which closely parallels the one above, MacGyver uses phenolphthalein solution mixed with a drain cleaner to simulate blood, in order to create a decoy from two gun wielding teenagers who are chasing his recently wounded friend.

The Outsiders (4x03)
MacGyver uses barrels to support a dirt tunnel.

On a Wing and a Prayer (4x04)
A plane's left ski is damaged after a crash landing. MacGyver rigs a piece of hose from the plane's fire extinguisher in order to patch the damaged oil line and has Jack heat up a damaged ski strut and set it straight on an open fire. He then repairs a large gash in the ski with a makeshift fiberglass seal, made of life jackets (for the fibers) and a heated rubber and nylon compound to make a waterproof seal over the top.

In order for the damaged plane to take off, MacGyver creates a Jet Assisted Take Off (JATO) unit with two Rocket Propelled Grenades (RPGs) called 'Vipers'. He ties the RPGs to the skis of the plane and wires the igniters from the rockets so that they are placed inside the cockpit. The RPGs are ignited by a sharp impact, which in this case is a hammer.

Collision Course (4x05)

The Survivors (4x06)

Deadly Dreams (4x07)

Ma Dalton (4x08)

Cleo Rocks (4x09)

Fraternity of Thieves (4x10)
In order to save Pete Thornton's life after he was attacked by an enemy agent with prussic acid (hydrogen cyanide), identified by its strong almond odor, MacGyver uses sodium thiosulfate as an antidote which he gets from a nearby photo shop's printing machine which uses it as a photographic fixing agent.

The Battle of Tommy Giordano (4x11)
MacGyver taps the phone line of two criminals in the motel room next to his by first using a bent coat hanger to push his phone's receiving wires over to the other room's junction box, and then rewiring it in order to hear the conversation from the other room. Additionally, he uses the tweezers from his Swiss Army knife in order to pick the lock of the other motel room.

The Challenge (4x12)

Runners (4x13)

Gold Rush (4x14)
MacGyver plays back an old phonographic record on a black cylinder using a piece of paper and a safety pin that he rips from a Misha brooch. He rolls the sheet of paper into a cone and puts a safety pin on the tip. MacGyver places the tip of the safety pin on the black cylinder and rotates it in order to listen to the contents.

To escape from a plane wreckage that was caved in by an avalanche, MacGyver fills a metal bucket with 75% alcohol barely even one third full, put a gas canister inside and used a plastic string dipped in alcohol as the igniter. After setting the string on fire, the gas can eventually catches on fire and blows to the direction of the gas faucet.

The Invisible Killer (4x15)
MacGyver constructs an air powered gun with a telescope and air horn. For the projectile he uses pepper and vinegar.

MacGyver sets a trap using rope and a trap door. He makes a loop in the rope and covers the trap door with the rope loop and then a rug. The last convict gets roped when he falls in the trap.

Brainwashed (4x16)

Easy Target (4x17)
MacGyver creates a bomb by taking C4 out of a hand grenade and making a smaller bomb by taping the explosive material with a regular painter tape to the hand grenade's detonator (thus making a smaller bomb which would not blow down the whole house).

MacGyver rigs a radio-phone to short-circuit by connecting a loose cord inside. Then he used the other radio-phone to remotely short-circuit the phone which distracted the bad guys.

Renegade (4x18)
To catch an escaping thief during a security lockdown, MacGyver hot-wires an elevator by simply holding his Swiss army knife between two cords in the control box on top of the elevator.

Unfinished Business (4x19)

Season 5
The Legend of the Holy Rose, part 1 (5x01)
MacGyver builds an ultralight airplane with bamboo poles, heavy duty garbage bags, a cement mixer engine, and duct tape. (This was tested and busted by MythBusters, though some doubt exists as to the validity of the experiment performed by MythBusters compared to the scenario depicted on MacGyver - namely that the cliff drop on MythBusters was small compared to the MacGyver scenario, and thus the MythBusters aircraft did not have enough time to develop the necessary air speed for the aircraft to be able to fly.)

The Legend of the Holy Rose, part 2 (5x02)
MacGyver sets up three rods with crystal heads, a golden globe (with ruby center), and a shiny mirror artifact on a stone (created for this purpose) to create a ruby laser that ignites what he believes is gunpowder in a stone wall.

The Black Corsage (5x03)
MacGyver rigs up a Fun Fair booth so that its horizontally mounted shutter drops when one of the bad guys tries to pick up a piece of stolen jewelry. When the jewelry is picked up the moving target activates pulling a hose along with it which dislodges the wooden supports of the shutter thus dropping it on the bad guy and knocking him out.

Cease Fire (5x04)
MacGyver repairs a spark plug with a broken top electrode by first hammering a nail head so that it becomes flat, and then running a current from a battery through the nail and the spark plug head as to fuse the broken electrode and the nail together. Once the weld is made, he cuts the nail to the correct length and bends it towards the other electrode to form the correct gap with the other electrode of the spark plug.

Second Chance (5x05)
MacGyver uses a pulley system fashioned from torn fabric, baling wire, and toy car wheels to assist a small dog in crossing a busy road.

Halloween Knights (5x06)
MacGyver uses candle wax, some pool cue chalk, and his breath to bypass a biometric thumb print lock. (He dusts a glass for the thumb print using the chalk, and then uses candle wax to transfer the thumb print onto his thumb)

To cross a pit filled with snakes, MacGyver uses the smell of kerosene taken from a nearby torch to repel the snakes by pouring it on his legs and feet.

Children of Light (5x07)
MacGyver uses a hydraulic clamp bolted on a work bench to pry open a door, by attaching a pipe and a block of wood to the shaft of the moving arm and then turning the handle that closes the clamp so that the shaft pushes on the door.

MacGyver creates a zip line to escape from the roof of a building using a steel shaft from a large TV antenna and a large rope. He ties one end of the rope to the building and throws the other end to Pete Thornton who ties it to the bumper of his van. Pete then gets the driver to move the van forward in order to tighten the line. Meanwhile MacGyver bends the shaft of the TV antenna into the shape of a hook and uses his jacket to protect his hand from the friction, and proceeds to slide down the line with another person (whom he was trying to free from the building).

Black Rhino (5x08)

The Ten Percent Solution (5x09)
MacGyver and his friend escape from an operating gas chamber using only objects found within the chamber. MacGyver first locates the tube behind a vent that is feeding the gas into the chamber. Then he uses his knife to unscrew the vent grating, cut a hole on his side of the chamber's door, and then feeds the tube in. He theorizes that since the door is essentially hollow inside, he can ignite the gas now being fed in and blast the door apart, which he does after breaking the one light bulb in the chamber near the hole in the door, creating a spark.

Two Times Trouble(5x10)

The Madonna (5x11)

Serenity (5x12)

Live and Learn (5x13)

Log Jam (5x14)

The Treasure of Manco (5x15)

Jenny's Chance (5x16)

Deep Cover (5x17)

The Lost Amadeus (5x18)

Hearts of Steel (5x19)

Rush to Judgement (5x20)

Passages (5x21)
In this episode MacGyver has a near death experience while he is in a coma and meets his grandfather who has died from a heart attack. This meeting takes place on a passenger cruise boat called Osiris. When his grandfather encourages him to leave, Anubis (the Egyptian afterlife gatekeeper) refuses to let him go. Anubis locks MacGyver and his grandfather in the engine room and jams the lock wheel with an axe. MacGyver wraps one end of a fire hose around the lock wheel and the other end around the ships propeller shaft. The tension builds as the hose is wrapped around the shaft and eventually shatters the wooden shaft of the axe, releasing the wheel lock and enabling MacGyver to escape.

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