In a thrilling adventure set in Sydney, two teenage BMX enthusiasts, P.J. and Goose, are struggling with financial issues after attempting to build their custom ramp. They stumble upon an accidental windfall when they meet Judy, a new friend, and discover a cache of walkie-talkies. Unbeknownst to them, these devices are part of a heist plan orchestrated by a gang of notorious bank robbers. The trio decides to sell the walkie-talkies to help fund their BMX racing dreams, inadvertently embroiling themselves in the criminals' scheme.

Chaos ensues as the gang relentlessly pursues the teens to retrieve their equipment. The young bikers must outwit and outrun the crooks through a series of high-octane chases, leveraging their BMX skills and intimate knowledge of the city's terrain. Their adventures take them from bustling urban streets to rugged coastal landscapes, showcasing their resourcefulness and the exhilarating world of BMX riding. As the danger escalates, their friendship and determination are put to the ultimate test.