1. Diesel Domination

The Diesel Brothers overhaul and auction off 10 iconic diesel vehicles.

2. Cadillac of Diesels

The guys hope to score on the auction block with a rare diesel Cadillac.

3. Diesel G.O.A.T

Heavy D enlists a unique semi-amphibious off-road military vehicle that gives Redbeard a sinking feeling. Meanwhile, time's up for the Diesel Bi-Wheel, and they're left questioning its big debut.

4. Whatever Floats your Goat

Redbeard goes rogue taking on an iconic diesel vehicle build of his own. Will his Hail Mary cost them a Queen's Ransom? Meanwhile it's time to see if the Gama Goat will sink or swim -- literally.

5. Diesel Doze It

Heavy D rolls the dice on a vintage 1951 International Diesel dozer with engine problems. Is he pushing his luck? Meanwhile, Redbeard announces their first-ever double giveaway to keep some cash flowing into the shop.

6. Van Damn

The guys get fired up about an overlanding rig, but it turns into a totaled smoke show. Can Heavy D save the day or is the auction going up in flames?

7. Diesel Rat Rod

Heavy D bets the farm on a Diesel-swapped Chevy 210, but this rusty Rat Rod could run them off the road. Meanwhile, they're giving away a monstrous new TRX.

8. Military Mishap

Work continues on the Diesel rat rod, but Heavy D's latest military build hits a snag.

9. Double Trouble

Heavy D takes a chance on a unique double Corvette; Muscle takes the lead on a Denali for their latest giveaway.