Junkyard Wars

In this episode, each team has to build a machine which has to be able to launch heavy objects. It doesn't matter if they build a catapult, a giant robot, etc... Then, the machines will be tested in a competition which consists in launching a 150 lb washing machine as far as possible without destroying it until it crashes into the floor. Contestants "High Flyers" vs. "Superchargers"

In this episode, each team has to build a sled-puller tractor which has to be under 2000 lbs. Then, the tractors will be tested in a competition which consists in pulling a medium-sized sled through a simple course. The team that pulls the sled further wins. Contestants "Jet Doctors" vs. "Missile Masters"

It will be a hot time in the junkyard this episode as the Auto Amigos take on the Dirty Drivers in a fast and furious challenge to build a trike powered by a jet-engine. The race will consist of three trips down a one-eighth mile track...one at a time. The team that records the fastest time in any of their three trips will advance to the semi-finals. The Dirty Drivers are building a true jet engine on a lightweight frame. A propane tank will provide the gas and a spark plug will act as the ignition source. The key ingredient will be a turbo-charger from a truck. The turbo charger has two fans that turn in opposite directions. One fan will suck the propane into a combustion tank while the other will suck the heated air out and through a nozzle. If there's time, they also want to build an afterburner which should increase their speed. An afterburner ignites any remaining gasses in the chamber for added thrust. Time is NOT on their side.

The ultimate way to deal with traffic jams would be to push the offending cars out of the way and go through. Well, for the High Flyers and Big Shots, that dream is about to come true. The will be building a machine that will power it's way through a gauntlet of cars. A bunch of cars have been strewn down a track. The team that has the fastest total time after 3 runs (and a different driver each time) through the cars will advance. However, if they go outside of the yellow boundaries on the sides of the track, they incur a ten second penalty. So it isn't just speed...it's precision as well.

In this episode, each team has to build a "Dune Buggie" which has to be able to withstand the hard conditions of the desert. Then, the vehicles will be taken to the desert to test them in a competition. Contestants 'Junkyard Hogs' vs. 'Superchargers'

Teams from two New York City boroughs build paintball-firing tanks to out-gun each other.

In this episode, each family team has to build a powerful boat which has to be able to hit another boat and withstand it. Then, the vehicles will be tested in a competition that consists in pushing the enemy boat out of a "battle circle". Contestants "Kentucky Fried Family" vs. "Morterheads"

In this episode, each team has to build a light weighted vehicle which has to be able to participate in a race through a 3-lap mud course. Contestants 'Model Ts' vs. 'Detroit Muscle'

In this episode, each team has to build a powerful and fast remote controlled car. Then, the vehicles will be tested in a competition which consists in a giant battle bot fight. The teams can win by knocking out the enemy or earning points. Contestants "Pit Crew" vs. "Turbines".

In this episode, each team has to build a boat which has to be able to extinguish small fires. Then, the vehicles will be tested in a competition which consists in extinguishing a fire from a house across a lake. Contestants: "Pit Crew" vs. "Geeks".

In this semi-final competition, the teams have to build hydrofoils in a straight-up time trial. Contestants 'Sewer Rats' vs. 'Turbines'

In this episode, each team has to build a machine that's able to pick up the garbage from the streets. Then, the machines will be tested in a competition which consists of picking up the garbage off the street. The team that collects more garbage (by weight) wins. Contestants 'Sewer Rats' vs. 'Trash Can Heroes'

Challenge : build a land-racing yacht. Contestants Team Green : The Quantum Mechanics Team captain Leila Hasan, Danielle Smith, Kimberly Hamad-Schifferli, Expert Nord Embroden Team Red : The Geeks Team captain Thomas Massie, Rhett Creighton, Rony 'Koobs' Kubat, Expert Dennis Bassano

Challenge : build a hill-climbing car capable of carrying a team member as far as possible up a 400 ft., 40 degree gradient hill. Each team gets 3 attempts at conquering the steep gradient. Contestants Team Yellow : The Pit Crew Team captain Frank, Scott, Tim, Expert Chris Adamson Team Blue : The Jet Jocks Team captain Ron, Dave, Gifford, Expert Randy Ellis

In this episode, each team has to build a drilling machine. Then, the vehicles will be tested in a competition which consists in digging a hole big enough through 3 concrete walls to get all the team and the machine in it. Contestants: "Turbines" vs. "Bold Three"

Challenge to build the most accurate and destructive cannon. The objective to break the most concrete bricks in the opponent's wall. They both get three shots both teams thinking the 1st being pretty much a throw away shot to sight in the sights Contestants Team Green The Hicks Family Team captain Sam Anna Jakey Expert Bruce Paulson Team Yellow Washburn Boys Team captain Ray Shane Jon Expert Bernie Paulson

The Challenge is to build a vehicle that not only must carry all members to a gap, but then span the gap without leaving any parts behind, retrieve a flag, and go back to where they started in a head-to-head race. Contestants: Team Red: The Miami Gearheads Team Captain Milton, Frank, Anthony, and Expert Bill Harris Team Blue: Canadian Junkies Team Captain Gary, Kevin, Mike, and Expert Richard Hunt

Challenge to build a vehicle that can jump crushed cars, race down a dirt straight away, but can still be agile enough to handle tight turns. Contestants Team Blue The Law Dawgs Team captain Tom Dave Mike, Expert John Seasock Team Orange Ghost Mountain Riders Team captain Scotty Clark Johnson, Expert Roy Hooser

Challenge to build a machine to carry each member on one lap around a off road course that has bumps, jumps, and water. Contestants Team Orange: Damage Team captain Ristow John Kalbot Expert James Aduskevich Team Green: The Long Brothers Team captain Brian Long Terry Long Gary Long Expert Mike Ferguson

Challenge to build a machine chunk a pumpkin the most accurately to hit a target. They must use human power only. Contestants Team Blue: The Young Guns Team captain Stan Brighton Jeus Beltran Brian Michem Expert Ron Toms Team Orange: Three Rusty Juveniles Team captain Jay Ray Tom Expert Waddy Thompson

The teams embark on a ten-hour build of two completely different vehicles. One team builds a hot rod with a big, heavy engine and the other designs a car with a light body and less powerful engine. George and Cathy get in on the shoptalk to see why the teams went the way they did and interview expert and competition judge Pat Foster, a veteran drag racer. The next day, the teams have three chances to see who can get the best possible time.