Diesel Brothers

The Diesel Brothers celebrate Memorial Day and salute the men and women of the armed forces the best way they know how: epic builds, special celebrity guests and a crazy stunt to cap off the night.

The "Diesel Brothers" are hunkered down and preparing for the worst -- a zombie apocalypse; they share the best trucks for outrunning zombies; they interview experts and get ready for an epic zombie battle.

"Diesel Nation" rolls out the red carpet for some of the biggest stars; from Shaquille O'Neal to Guy Fieri, the guys check out awesome garages and challenge each other to spicy competition.

Richard Petty, Farmtruck and AZN relive some of their most embarrassing moments; Keith Spiker from the Dirty 7 has no idea what kind of redemption battle he's in for.

Nobody's perfect -- not even the Diesel Brothers. Special guests such as Richard Petty and Farmtruck and AZN relive their most embarrassing moments, and Keith Spiker from the Dirty 7 has no idea what kind of redemption battle he's in for.

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

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.

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.

Heavy D surprises the mechanics with his latest build: a tank. He has big plans for the beast, but must first find a new engine and get it moving again. Meanwhile, 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. Meanwhile, the shop splits into teams for an epic build-off between an AMC Eagle and a Subaru Brat for the Tour de Utah off-road

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.

The Diesel Brothers continue work on their rival builds for the first ever Tour de Utah off-road race; Heavy D pulls out all the stops for his AMC Eagle conversion while Diesel Dave and team smash together a Brat and an Impreza to avoid a full build.