Teams compete to build giant eggshooters.

Teams build monster trucks capable of running over moguls and crushing a line of cars.

Two teams build reusable torpedos.

Teams work to build a four-man garbage-collecting machine.

Challenge to build a boat that carries 2 team members and that can go up and down fast flowing rapids. Each team get 3 goes to get the fastest time. Contestants Team Dark Blue The X-tinguishers Team captain Westy, Fergy, Morley, Expert Alan Pickard Team Green The Body Snatchers Team captain Tim, Garry, Debbie, Expert Colin Poole

Challenge to build a snowmobile from scrap that can go the fastest around a 300 meter oval course that contains a slalom and a hill. The have 10 a maximum 10 of minutes and can restart 3 times. Contestants Team Blue The McCarknow Clan Team captain Stephen, Colin, David, Expert David Patterson Team Purple The Elli-vators Team captain Ellis, Rodger, Salih, Expert Micke Nordstrom

Challenge to build a crane that can quickly pick up an item and transport it across a area for it to be placed in a designated area. The teams receive various points from 10-50 depending on how difficult the item is to loft and carry. The items must be completely off the ground when being moved. There are 2 15 minute rounds. The team with the most points wins. Contestants Team Pink Cat-alysts Team captain Gary, Tim, Shane, Expert Tom Betts Team Orange Chairmen Team captain Ron, Gerald, Gary, Expert Phil Harvey

Challenge to build machines able to clear a minefield of compressed paint mines. In the 1st round they have 10 minutes to destroy or defuse the most mines. In the second round who ever got the most in the 1st round gets a 5 second per mine head start to find the one giant mine. Contestants Team Lime green Storm Force Team captain Waggie, Richard, Martin, Expert Richard Little Team Orange The Mule Wrights Team captain Ray, Carlos, Rick, Expert John Killgowen

Challenge to build a vehicle that can carry one team member and can climb a very steep incline in the fastest time or the farthest without losing traction or toppling over. Contestants Team Black The McCarknow Clan Team captain Stephen, Colin, David, Expert Matt Lee Team Orange The Mulewrights Team captain Ray, Rick, Carlos, Expert John Deaville

Challenge in this episode each team has to build a "tunneller". Then the machines will be tested in a drilling competition. Each team will have to drill a 2 foot hole through 2 concrete walls 3 feet thick each. The 1st wall is a medium concrete. The 2nd tougher wall is a harder concrete reinforced with aggregate. After both holes are drilled all team members must pass through the tunnel to escape. The team which passed through their tunnel and crosses the finish line first wins and will advance to the next round. Contestants Team Dark Blue The X-tinguishers Team captain Westy, Fergy, Morley, Expert Bill Lord Team Orange The Cat-alysts Team captain Shane, Garry, Tim, Expert Andy Weatherall

Challenge to build a boat that carrying one team member that can go fast enough to lift it's self up out of the water winds that are designed and build by the contestants. The winner is the team that can go around the 1/8 mile track the fastest in one of 3 rounds. Contestants Team Yellow The Mulewrights Team captain Ray, Rick, Carlos, Expert Sim Oakley Team Orange The Cat-alysts Team captain Gary, Tim, Shane, Expert Chris Plaass

Teams convert automobiles into remote-controlled fighting machines.