In The Garage

The Diesel Brothers overhaul a truck for a father who is harassed at a campsite when his F350 broke down; the guys put together the shop's first-ever diesel motorcycle, with a Magneto.

After Chet and Tyson of Goon Garage challenge the guys to a Tuff Truck race, Sparks Motors rebuilds a wasp-infested old Jeep, and the Goons rebuild a water-logged Blazer.

Heavy D and the crew transform a rundown Canadian logging truck into a maxed out, custom semi with which to transport their builds; Diesel Dave and the Muscle go head-to-head building two ultimate Diesel Daily Drivers for their next truck giveaway.

While the shop finishes the semi build, Heavy D moves full steam ahead with his plan to attempt a death-defying stunt in the Brodozer; to complement the jump, Heavy D plans a live giveaway inspired by one of their most popular builds, the US Duramax.

Heavy D buys a busted one-of-a-kind rock crawler and gives it the Sparks Motors treatment for a quick flip; a friend commissions a 1,000-gallon fuel truck and two custom diesel-powered fertilizer spreaders for his helicopter business.

Diesel Dave picks his first giveaway truck and dreams big, attempting to build the 2020 version of the Kodiak; Todd LeDuc challenges the guys to a desert race and flips the script by picking The Muscle to be on his team.

Diesel Dave continues working on his epic modern-day Kodiak while making sure he doesn't break the bank; Sam the Mad Scientist unveils The Kraken; a diesel-powered monowheel vehicle that is unlike anything the guys have ever seen.

Mad Scientist Sam's wild creation, the Kraken, comes to life, but Heavy D continues to be skeptical of the build's potential viral success; a high-profile client wants to customize a Ram 3500, which puts Diesel Dave and The Muscle to the test.

Heavy D surprises the mechanics with his build: a tank; he has big plans for the beast, but must first find a new engine and get it moving again; Heavy D, Diesel Dave and the Muscle personally trick out their latest giveaway truck.

The Diesel Brothers continue work on their tank build, but engine and transmission troubles put the project in jeopardy; the shop splits into teams for a build-off between an AMC Eagle and a Subaru Brat for the Tour de Utah off-road race.