The Rednecks aim to build a lightweight, bullet-proof suit that can augment human strength and fire weapons.
The guys turn their sights to underwater exploration -- building a homemade submarine out of a 4 x 4 plastic container farmers use to store fertilizer... and beer kegs, of course.
In his day job at the U.S. Army Space and Missile Defense Command, Travis has explored ways to protect the Earth from collision with an asteroid, but outside the office he'll actually put some of these ideas to the test.
The team create a floating "alternate energy power plant" out of old car parts and a waterwheel that creates all the energy required for a "Redneck Rec Room."
The guys build a solar thermal rocket engine out of old satellite dishes to test out a free energy source that could travel between the stars - or power an old fishing boat.
Travis and the guys compete in NASA's Great Moonbuggy Race - an international competition to create a human-powered lunar vehicle designed to fit aboard a space capsule. Engineering teams around the world spend years designing entries but the Rednecks build theirs in one weekend. After all, Daddy did work on the original Apollo space program so they should have a leg up.
With NASAs shuttle program now defunct, the Rednecks decide to build their own big ass rocket. Staying true to their redneck roots, the team uses whatever they can find, including a farmers abandoned water tank and an old safety ladder, to craft a 700-pound rocket. But they have to buy the largest rocket engines you can get without being in the government.
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.
The Rednecks put on a Fourth of July fireworks display using their own rocket fuel and a self-engineered computer program to remotely control the fireworks.
Energy prices are so high that the Boys want to find a way to create a home that's totally off-the-grid.
Using Pete and Travis's experience in military armor and Daddy and Michael's weaponry skills, the Rednecks create a fully-armored war-wagon mounted with a flame thrower and a giant potato cannon, suitable for hunting deer or chasing off invaders.
The Rednecks experiment with the physics of slingshots and trebuchets, then rig a "Super-treb" with a pulley system and weather balloo... that looks more like a massive slingshot than a launch vehicle.
Old sci-fi magazines once promised a Jetsons-style Hovercraft for everyone - but a redneck would prefer a "loungechair hovercraft."
The Stealth Helicopter used in the Bin Laden assault gets Michael thinking - can he avoid another speeding ticket with a "stealth vehicle" that should be completely invisible to radar?
Nothing is more redneck-y than a tailgate party, but Travis wants to use rocket science to turn the Ford Superduty into the ultimate in portable entertainment and food production for NASCAR.
The Rednecks enter a NASA contest with the hopes of launching a man-capable rocket 1 mile into the sky. The custom 20-foot-tall missile boasts two engines and about 3,000 pounds of thrust fueled by a mixture of ammonium perchlorate and aluminum. The goal: Once the rocket reaches 1 mile, explosive charges will shoot a parachute out and allow the capsule, and the test dummy, to float safely back to earth.
Travis draws inspiration from an experiment he did as a child, while Rog gets his idea from old western movies. Armed with toilet cleaner and welding gas, Team Travis and Team Rog face off, testing their best backwoods bomb creations on small outhouses. The reward? The winner gets to use his invention to blow up a friend's old barn.
Borrowing an 825-gallon barrel from a neighbor's farm, Travis and the boys fortify the pod walls with layers of plywood, laminate, heat-resistant tiles and of course... spray foam. Then they install car seats on the interior to support two passengers and paddle wheels on the sides... just in case they are swept out to sea. To test its' durability, Travis and Rog climb in and plan to complete a rugged obstacle course complete with a cement wall, sharp metal hurdles and a lake. But things don't go as planned, and the survival pod is really put to a survival test! "I screamed like a little girl," says Travis.
Boys will be boys, and boys like their toys. After racing radio-controlled toy cars in Daddy's driveway, the Rednecks decide to GO BIG and make full-sized versions using an old pickup truck and an RV camper. And what better way to test them out than by staging a demolition derby to crash their cars into each other to see which is best!
The Rednecks see if they can pull off an invention while Travis is gone: a one-man flying machine. First, they build a jetpack from a backpack and a large model rocket motor and strap the whole device onto a mannequin as a test pilot. During the test flight, the mannequin plows face-first into the ground, and Travis decides it's time to come home before someone gets hurt.
Papa John's CEO John Schnatter makes a guest appearance and challenges the Rednecks to design a pizza delivery bike that could be used in big cities. This business mogul wants more than just a pizza box strapped on the back of a 10-speed; he needs a motorized kitchen on wheels that can keep the pizzas warm and the sodas cold.
The Rednecks build an all-terrain transformer that's more than meets the eye. The weekend gets off to a rocky start when the prototype the guys nickname Stupidious Prime nearly breaks Travis' back. But after some design tweaks, troubleshooting and mud flaps, they'll put the transformer to the ultimate redneck test beer run!
No gunpowder or bullets in Alabama?! Travis thinks its high time that modern weaponry evolvedafter all, gunpowder is a thousand-year-old invention. He predicts that beam technology is the wave of the future. But building an actual ray weapon proves to be more challenging than Travis expected. After a failed experiment that destroys Mama Taylor's brand-new microwave, the guys ask a local mad scientist for help with high-voltage technology.
Travis' brother has served multiple tours in Afghanistan and knows firsthand how heavy military-issued armor can be. So Travis decides to build his own version of a lightweight, full-body flak suit that could protect a soldier without limiting mobility. To put the design's mobility to the test, a retired drill sergeant puts Travis through civilian boot camp. Then, to prove the armor is light enough for a soldier to wear in combat, Travis straps on the suit and runs the full Marine Corps Marathon.