The '57 Chevy build goes smoothly, so Boyd and the guys travel to an auto show in Arizona. Meanwhile, back at the shop, one crew member decides to mix things up, creating chaos.

Restoration of a classic 1957 Chevy begins; Boyd heads north to lend his expertise to a local crew attempting to restore a car in 36 hours.

The Coddington crew continues working on their latest build, a 1940 Ford. Already behind schedule, the guys slip even further behind. With Tony making more and more mistakes in the shop, he is transferred to the CNC Shop, in hopes of finding his niche. Duane and Bernt go on vacation, leaving Dan in charge. But when Dan and the BodShop guys butt heads, the car gets even more off course. Duane returns to the shop, and tempers flare when he finds out that the car still isn't done.

With the deadline quickly approaching for the '61 Chevy Impala Bubbletop, the Coddington crew kicks it into high gear. When Boyd questions the paint job, a crew member grows frustrated and threatens to walk out. Once the car is in final assembly, Scott packs up and says goodbye to the hot rod shop. When the wheel shop closes its doors, Diane has a hard time leaving it all behind.

Boyd and the Coddington crew get to work on their latest project — a 1961 Chevy Impala Bubbletop. While the car is being taken apart, Lee finds himself a new partner in crime in Tony. The two of them add some spice to the shop and cook up some chili for the crew. Scott and Chris take a trip to Mexico and decide to build a truck as a side project, but when it adds more work for crew, Duane's temper boils over.

The body shop races to finish the paint on the '57 Chevy, and Boyd brings a little Christmas cheer by giving the guys a day at the drag strip.

Three weeks into the project, the team finds itself running several days behind an already tight schedule. Problems arise when the doors won't fit properly on the body, but after some after-hours hammering sessions, the boys manage to tame their junkyard dog — until a snafu with the gas tank nearly blows up in their faces.

A Swedish intern joins the team, his fumbling nearly setting off an international incident in the shop. Already days behind schedule on the chassis, the crew hits another snag when Kevin falls asleep at the wheel-making machine. But with Duane barking out orders, the pieces finally come together, and the chassis gets shipped out to Marcel's Custom Metal, where the 'tub begins to take shape.

Work starts on the ‘36 Ford, but typical last minute changes threaten the project. One member of the team is so frustrated that he storms out.

Boyd and the guys race to finish their latest build, a 1940 Ford, on time. Duane is upset that they have gotten so far behind schedule. Fortunately, the Coddington crew pulls it together and finishes in time to reveal the car in Sacramento.

Boyd and the Coddington crew get to work on their latest project — a 1961 Chevy Impala Bubbletop. While the car is being taken apart, Lee finds himself a new partner in crime in Tony. The two of them add some spice to the shop and cook up some chili for the crew. Scott and Chris take a trip to Mexico and decide to build a truck as a side project, but when it adds more work for crew, Duane's temper boils over.

The builds finally complete, Boyd unveils the new masterpieces at Camp Pendleton in Southern California to boost morale among Marines being deployed to Iraq.

The pressure to finish the 1959 Impala and matching motorcycle intensifies.

The garage continues to add speedster style to the Impala and to build a matching one-off motorcycle also requested by the client.

Boyd and the crew take on the challenge of rebuilding a 1959 Impala two-door coupe — nicknamed "Ghetto Princess" — and turning it into a classic lowrider with an extra-low stance, wide wheels and a Chevy big block.

With only two days left to assemble the entire '32 roadster, Boyd's team bears down to fight its way to the finish line. But when Mike refuses to work over the weekend and a boxful of crucial parts fails to come back from the chrome-plater, Boyd faces the possibility of heading to his hot-rod event with nothing to show.

Falling dangerously behind on the prize '32 Roadster, the Coddington crew is forced to make radical moves in their bid to bring their beast under control. As the deadline fast approaches, the two Coddington shops find themselves fighting over the roadster and control of the car's destiny.

When the '32 Roadster hits a major speed bump with parts missing and the shop in an uproar, Duane reaches his breaking point. His shop on its way to a full-blown disaster, Boyd makes a shocking decision to change the build that will either make or break the roadster.

The team finish Jo's car and head off to Bonnieville. Before she can attempt the 200mph record Jo must first earn her licenses in a car she hasn't driven before.

The garage's new guy, Bernt, feels the pressure as time runs out to finish the hot rod for Bud Light. Tensions run high as everyone scrambles to meet the deadline.

The tension between Boyd and Bluebear rises to a dangerous level as the young, headstrong builder goes against the master's orders. As the crisis grows, Bluebear begins to alienate members of his own team, and the entire competition threatens to unravel.

Work continues on the 2 builds, while finishing up a 3rd for good measure. Duane's management style starts to take its toll and morale sinks to a new low. Al quits and Liz leaves as her and Jo don't get along. What is happening to the crew?

With only seven days left to finish the '65 Mustang, Duane cracks under the pressure with fewer crew members to complete the job and key parts still missing. Just when Boyd's crew reaches their deadline in time for the car to head to upholstery, Charley is put to the test again when the engine's paint job cracks, leaving him to pull another all-nighter for his team. Will this American beauty reach the finish line after its most severe crisis yet? The Mustang project must come to an end — whether or not the car is completed in time for the surprise reveal at Indy.

Sobe ask Boyd to build a promotional hot rod based on a 1960 Mercury wagon. Meanwhile the construction company are back with a special build - a wheelbarrow - in time for a convention.

After months of disagreements over what constitutes a classic hot rod, Boyd puts Bluebear's "theories" to the test and challenges him to a build-off — one that will end with a race from L.A. to Louisville, Ky. But the chance to be in charge quickly goes to Bluebear's head, and he refuses to heed Boyd's advice, even on important safety issues.

Still reeling from Charley's departure, the crew embarks its next endeavor: a '63 Corvette. But what sounds like a dream project turns into a nightmare when the owner requests that the 1,500-horsepower Corvette be a race car, show car and street car all in one; as a result Mike and the guys quickly lose interest in the difficult project. With Duane pulling double duty to fill in for Charley in the body shop, Scott is put in charge, and the search for Charley's replacement is on.

Boyd visits Hershey to get a brief on a car they want built - as a tribute to Elvis Presley. Boyd and Jo tour the factory to meet the people then head off to Graceland to get some idea's for the car. The final choice is a 57 Caddilac and Boyd gets to work.

With a lot of work to do, and little time to do it, Duane's stress reaches the boiling point, leading Boyd to suggest he take a vacation while the car's being upholstered. Meanwhile, Charley confides to Beetle Bailey that he is considering a job offer from another shop. The tension can be cut with a knife as the Woodie finally heads into the body shop.

With only two weeks to go before the '63 Corvette's debut, Boyd faces a mutiny when some of his best guys walk out for an overdue day off. Meanwhile, a mystery painter steps into the booth to paint the car in Charley's absence. But with so little time before the deadline hits, the team must pull together and work around the clock to get the car completed. Boyd stalls the crowd until the car is finished, and when the Sting Ray finally rolls out in front of the anxious spectators, it's a huge success for Boyd and his loyal team.

As the deadline looms, the stress starts to affect Dwayne and the countdown clock is not helping. Everything starts coming together and the car gets into shape, including some custom surfboards. With the car complete, Boyd heads off to unveil the car at a surf event in Florida.

As the build-off between Boyd and Bluebear grows more tense, Boyd desperately tries to lighten the mood. But his attempts fall by the wayside as Bluebear's stiff resistance to Boyd's suggestions only hardens Boyd's resolve that the issue must come to a head. In a shocking confrontation, the two men lay it all out on the table. As emotions reach a fever pitch, Bluebear's future in the shop will finally be determined.

With the build-off finally over, the race across the country will determine the winning hot rod. Through desert, forest and mountains the teams race their cars while facing every possible tragedy and triumph. Finally, a winner is crowned, but a huge surprise awaits at the finish line in Kentucky.

Work on the Mercury continues but is going very slowly as everyone is waiting for things to happen.

The Coddington team find themselves knee-deep in controversy over the '65 Mustang. With the shop tearing itself apart, Boyd decides to use a little positive reinforcement to boost morale by taking some of his hardworking crew to judge a different kind of contest. But when the same old problems return, Boyd introduces the crew to his own version of positive reinforcement: a military boot camp to get everyone into shape. Then, as the Mustang nears a crucial deadline, Charley realizes that he's low on a crucial element. Will Boyd let Charley take the heat for all the delays, or will he send another shop member to the firing squad?

To boost morale, Boyd brings in a fun new project: a classic '42 Woodie. However, no one else in the shop seems excited by the build, especially when they find out they have less than eight weeks to complete the project before its debut at a car show in Hawaii. With a tight schedule and a less-than-teamwork attitude in the shop, this build might not make it out of the starting blocks.

To meet the Woodie's deadline, everyone pitches in, despite several hotheaded stand-offs. But at the last second, when the guys try to start the car, they discover a major leak, which takes hours to correct. In the end, the car makes it to its unveiling in Hawaii and is a huge success; however, Boyd and Charley remain at odds, and after a very emotional showdown, Charley quits to take a job with a rival shop. What will Boyd do without his heavy hitter?