Sick of the ridicule on social media, Heavy D decides to finally finish the "Fail of the Year" UTV. And the gridiron comes to the garage when NFL legend Marshawn Lynch asks the guys to build him a Beastmode UTV.

When Redbeard challenges Heavy D to repurpose some old inventory, Heavy decides to marry a stretched six-door F650 with a camper to create the ultimate expedition vehicle; the guys buy a Hummer H1 from a mysterious mountain man.

Heavy D, Diesel Dave and the Dieselsellerz crew scramble to finish a six-door stretched F650 Expedition Camper for a big client; Heavy D shocks the team with his latest flip: a diesel-powered experimental helicopter.