"The roar of the crowd, the glow of the spotlight, the thrill of the race--Mace Blazer dreams of going TURBO. TURBOnauts thrive on the thrum of trimorphers's rocket engines as the vehicles morph from super-powered race cars to speeding jet aircrafts to torpedo-fast submarines, while they race full-throttle around every bend. And Mace believes he's got what it takes to join their ranks--he only needs the chance to prove it. So when a reclusive retired...