In this episode, the Go Jetters arrive at the Bonneville Salt Flats in Utah, USA - a huge dry lakebed that's perfect for high-speed driving. Lars unveils the Turbo Zoomster, a racecar made for Xuli to break the Go Jet land speed record. Suddenly, Grandmaster Glitch arrives at the wheel of his suped-up dragster. He once lost a race to the current record holder, Ubercorn, and now he's back for a second go.

Kyan, Lars and Foz pick up litter on the Academy beach after a storm, while Xuli dives down to check the coral reef. She spots something in the murky depths: a huge rusty submarine lies across the reef, and the moustache on the bow means it must belong to Grandmaster Glitch. What's worse, it's leaking oil!