Dougie does a deep dive when he completely builds out the rear end assembly for the 1969 GTX; Mark and George break out the hydraulics to reverse the damage done to Mark's newest acquisition; a Graveyard favorite returns.

The 1970 Challenger in B7 Blue owned by the Amentinis is finished and ready to be revealed; witnessing every moment of its restoration, from dead to resurrected and detailed to the way it left the factory floor.

Allysa and Dougie finish building out the 440 engine for the 1968 GTX currently in assembly; Allysa and Mark begin one of the most difficult decal applications, a White Billboard for the 1970 'Cuda Convertible.

While the ghouls finish up the ornamentation and chrome moldings for the 1969 GTX, Cousin Dougie enlists the Greenhorn's help to disassemble the first 1970 Road Runner - with careful precision to hopefully find the car's broadcast sheet.

Mark takes a road-trip to Boring, Ore., to look at a new restoration project; when it turns out to be an unusually well-preserved muscle-car, Mark must work outside his comfort zone to try to wheel and deal.

The Graveyard is covered in an unexpected blanket of snow, prompting Mark to install its first mausoleum; the ghouls focus on a 1969 GTX, installing ornamentation and chrome; Mark takes over the airwaves to announce what he's building for SEMA.

Mark and Allysa install the graphics on the '71 Plumb Crazy Challenger; the 1970 Lemon-Twist Roadrunner gets finished and readied for delivery to it's owner; Mark proposes what he thinks is a brilliant idea to the show's producers.

Mark and the Ghouls race against the clock to finish some last-minute tasks on their various Mopar restorations before traveling north to judge a car show at Little Creek Casino.

With SEMA around the corner, the ghouls work hard to complete Operation Firepower.

Mark and the Ghouls get down to work like never before in order to get the A100 ready for SEMA, which is only weeks away; the Mopar Maniacs race to get brakes, suspension, bed sealer, tail lights and more done in time.

With SEMA 2018 looming on the horizon, it's time to address the elephant in the room: Mark's 1964 A100 Hemi truck; The Little Dead Wagon, built as an homage to Bill Maverick's Little Red Wagon, gets new paint and a super powerful engine.

SEMA is almost here but the iconic A100 still needs some buttoning up; installing all of the final components means it's all-hands-on-deck; the team heads to SEMA to roll the Little Dead Wagon over the red carpet for Mopar.

Mark leaves Will in charge of the shop while working on his super-secret SEMA 2019 build; George and Dougie to begin the final assembly to the 1970 B7 Challenger while contending with Will; a 1970 'Cuda is prepped for its first-coat of Rallye Red.

With Mark out looking at a potential new location for a Mopar car dealership, the Ghouls begin the drivetrain assemblies for a 1970 Lime Light Tribute Superbird and the 1970 Plum Crazy Challenger.

Mark finishes the 440 4BBL for the 1970 Plum Crazy Challenger while master-assembler Dave begins working on the 1970 Lemon Twist Road Runner.

The restoration of the screen-used, record-holding General Lee from the 2005 film "The Dukes of Hazzard" leads to a momentous reveal.

At SEMA 2018, Mark was gifted the first third-generation 426 Hemi-Crate engine by Mopar, and now must decide which car he's going to install it in for SEMA 2019; Will begins paint-prep on a beautiful Rallye Red 1970 Plymouth 'Cuda.

Mark isolates himself in the machine shop and begins the assembly of the 440 4BBL for the 1970 Plum Crazy Challenger previously owned by a former cast member.

The Ghouls return with the final assembly of the legendary General Lee, the official screen-used, record-holding, freeway jump-car from the 2005 film "The Dukes of Hazzard."

The beautiful Turbine-Bonze Metallic 1968 Charger is meticulously resurrected and revealed to its proud owner.

Brett Torino is coming to claim his legendary 1970 Coronet (1 of 2 ever made) from its long awaited restoration with the Mopar Master and Mark's got a few tricks up his sleeve; the epic reveal, like this vehicle, is absolutely one of a kind.

Wayne Carini chases cars for a living. Not literally, but if a vehicle were an iconic Mercedes Gullwing or a luxurious Maserati Ghibli, for instance, and Carini saw it in motion, it's a sure bet he would get himself in gear and run after it. That's how much this man loves classic cars, a passion that Velocity has captured for this series since 2008. Known as a "collector car archaeologist," Carini leads viewers into the business of locating high-end automobiles stashed in homes, garages and barns in the U.S. and abroad. When he finds a gem, Carini negotiates to buy it, then resells at auction or privately. Along the way he talks shop with respected collectors, restorers and artisans.

Car enthusiast Mike Brewer and internationally renowned car designer Ant Anstead work together to give new life to run-down, classic automobiles in order to resell at a profit. Working with a limited budget, Mike's job is to find and purchase a vehicle before presenting it to Ant, who makes the necessary repairs -- and there usually are plenty of them -- giving tips along the way about electrical and structural issues, mechanics, cosmetic touches and finishing work. Once complete, the restored car is taken for a test drive, and then Mike negotiates the purchase price with a new owner. The series, a British import, began airing on Discovery Channel in the U.K. in 2003. Its first 13 seasons featured master mechanic Edd China as Brewer's sidekick.

Buying diesel trucks headed for the scrap heap and giving them new leases on life has turned into big business for the Diesel Brothers. Led by Heavy D and Diesel Dave, the crew works hard and plays harder as they trick out the trucks for use in elaborate pranks and stunts, all of which becomes a marketing tool on social media. Millions of hits later the company is known as the destination for diesel lovers who are looking for custom builds, crazy stunts, pranks and hilarious antics.

It takes a lot of nuts and bolts, so to speak, to challenge Richard Rawlings and his crew at Dallas hot rod shop Gas Monkey Garage. But that's what mechanics Tom Smith and Jordan Butler are fixin' to do by opening a rival shop with fellow car pros Thomas Weeks and Scot McMillan. The venture, Fired Up Garage, is their chance to go toe-to-toe with powerful Gas Monkey -- featured in Discovery's hit series "Fast N' Loud" -- and prove that they have what it takes to run a car business. Smith and Butler have extra motivation, too: They worked at Gas Monkey before a series of mishaps forced Rawlings to fire them.

Richard Rawlings and Aaron Kaufman deal in rusty gold. The proprietors of Gas Monkey Garage in Dallas buy, restore and resell forgotten, derelict American cars, everything from 1931 Model A cars to '73 Trans Ams. As "Fast N' Loud" shows, Rawlings is the mastermind, a deal-maker with an eye for relics worth their efforts, and to find them the guys search barns, fields and auctions across the U.S. Kaufman manages most restorations. He's a fabricator and self-taught mechanic, whose techniques and design skills first endeared him to Rawlings and kick-started the partnership. At the end of Season 12, that partnership ended when Kaufman exited Gas Monkey, leaving Rawlings as the series' sole star.