At the end of the 19th century, mechanical engineer Appare is thrown in jail for upsetting one of the town's elite, who then also appoints young swordsman Kosame to keep an eye on him. But Kosame finds keeping Appare out of trouble to be a challenge.

Stranded in Los Angeles, Appare and Kosame must find work in order to survive, but their options are limited. The pair learn of a trans-continental auto race being held soon, and Appare sets his mind to winning it, while Kosame is anxious to get home.

Appare and Kosame take in Hototo and dress his injuries. Al Lyon, representing the BNW motor company, arrives in Los Angeles and wants to rent the storehouse that the pair are staying in, so Appare proposes that they race for it.

Wanting to prove that women can be capable racers, Xialian challenges her team's official driver, David, to a race. However, not wanting to risk one of his vehicles on some silly race, the owner makes Xialian drive a big hunk of junk.

After days of working nonstop, Appare is out like a light and Kosame has to drag him to the big celebration on the eve of the race. Nearly kicked out for violating the dress code, they chow down just before all hell breaks loose at the party.

The racers reach the first supply point and prepare to take on Death Valley. Meanwhile, Hototo discovers one of the racers is planning a deadly trap but soon finds himself in a bind.