Born to race cars, Speed Racer (Emile Hirsch) is aggressive, instinctive and, most of all, fearless. His only real competition is the memory of the brother he idolized – the legendary Rex Racer, whose death in a race has left behind a legacy that Speed is driven to fulfill. Speed uncovers a terrible secret – that some of the biggest races are being fixed by a handful of ruthless moguls who manipulate the top drivers to boost profits.