The Dieselsellerz are pulling out all the stops to completely rebuild the Super Six for a client; Heavy D faces a challenge when his neighbor asks him to turn a 5-ton military truck into a snow-demolishing plow.

The Dieselsellerz are pulling out all the stops to build a new giveaway: a Nissan Titan with a near-zero emission Cummins engine; Heavy D fulfills his lifelong dream to drive a truck in Monster Jam.

For the Dieselsellerz giveaway, Thunder vs. Lightning, two lifted F450s compete and the winner decides which one to take home; the guys continue turning a busted '69 Chevy C10 into a diesel low rider for a millionaire client.

The guys face a huge challenge when a big dollar collector asks them to slam a 1969 Chevy C10; Heavy D and the guys are off to bike week at Sturgis to check out a one-of-a-kind hydrostatic diesel motorcycle.

The guys build an amphibious Sisu Nasu for the local sheriff; the next work truck giveaway: a Dodge 5500 with all the bells and whistles.

Heavy D adds a second truck to their latest giveaway and comes up with a stunt to promote it: a race across a lake on snowmobiles. Then, the guys head to Houston with giant diesel trucks and supplies to help Hurricane Harvey victims.