American Hot Rod takes a close-up view of one of the world's most celebrated hot rod builders – the legendary Boyd Coddington. Follow Boyd and his team – Roy, the shop supervisor; Charley, the lead fabricator; and Duane, who oversees each rod's internals – for all of the drama, comedy and tension as they conceive and construct some of the finest classic cruisers.

Rat Rod Build-Off 1
After months of arguing 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 Los Angeles to Louisville. But the chance to be in charge quickly goes to Bluebear's head and he refuses to heed Boyd's mechanical advice, even when it comes to important safety issues.

Rat Rod Build-Off 2
The tension between Boyd and Bluebear reaches a dangerous level when the young, headstrong builder goes against his mentor's orders. As the crisis grows, Bluebear begins to alienate members of his own team, and the entire competition threatens to unravel.

Rat Rod Build-Off 3
With the once-friendly competition quickly turning sour, Boyd desperately tries to lighten the mood in the shop. But when Bluebear responds with his typical acidity, Boyd realizes what he must do. In a shocking confrontation, the two men lay it all on the table – and Bluebear's future in the shop is finally determined.

Rat Rod Build-Off 4
The marathon build-off is finally over – now the cross-country race to determine the winning hot rod can begin. Each team races across the desert, through the forest and over the mountains toward the checkered flag in Kentucky, facing more than a few pitfalls along the way. Finally, a winner is crowned – but a huge surprise awaits both teams at the finish line.