After 170 killer tornados tear through the South in just two days, the Rocket City Rednecks build a "tornado-proof outhouse" that can withstand F5 winds. Believing that hundreds of lives could have been saved with the proper shelters in place, Travis wants to demonstrate how a safe place can be built without spending much money and by using common materials found in a hardware store. To test the safe house, the Rednecks construct a cannon and shoot 2x4s at a speed of 100 mph or more.