Sin City Motors

A hot rod lover from California looking for his first rat rod challenges Steve to transform a 1931 Ford Model A into a salt flats racing machine. Turning this pile of junk into a Welderup special will take every ounce of Steve's talent - and getting it done before his client returns to Vegas will take a miracle.

Steve digs back into his Montana roots to build his cowboy buddy J.R. the ultimate ranch truck by Frankensteining together a pair of vintage Dodges. Already struggling to get the truck done on J.R.'s ridiculous budget, Steve has to scramble to track down a vintage mini-bike for another client.

When client Jonathan Mill brings Steve a 1928 Buick filled with rotten wood his excitement at rat rodding an original 'gangster' car soon fades when he learns his client wants it to be an electric car. The creator of the award winning electronic emergency brake, the E-Stopp, wants the car to promote his company at SEMA, the largest car show in the world.

Guns and gators are on the menu when a Texan house mover brings Steve his family treasure: a 1938 Big Rig Mack Truck cab. Stuck with a cab one step from the grave, the crew has its work cut out for them and when Steve blows out the engine on Welderup's signature car, the D-Rod, his head's not in the game.

Steve trades in his trademark rust for a shiny paintjob when he tackles a 1965 Lincoln Continental for a flashy bartender from L.A. Adding bling to a car that his whole crew hates isn't the only thing Steve has to worry about: his two sons are in town and showing they don't fall far from the tree by tearing the shop apart to build a "rat quad" go-kart.

Steve yanks a '49 Ford F1 out of a farmer's field and battles to transform it into an eye-popping promotional vehicle for a couple of his dad's old friends. Tensions mount with the Welderup crew as shop upholsterer Barber acts out after Steve outsources his job and money guy Dave's mistakes begin to pile up.

When a California fruit farmer with a taste for hot rods brings Steve a 1954 GMC COE truck he decides to take it over the top. With a 1200 horsepower engine mounted behind the cab in the flatbed the crew begin their love affair with the baddest truck ever made.

Steve's younger brother Dusty has flown in from Montana. He's always wanted his own rat rod, and brings Steve a limited budget and a dream. Steve decides to take one of the Model A's from his yard and build a ground up creation. He brings in his buddy Kyle, a fellow custom builder and together they put together a car to rival Steve's beloved D-rod.