Hold on to your chili dogs, Sonic fans! The Metal Virus is gone, but things aren't back to normal. Omega is damaged, and his allies turn to Team Sonic for help. The only way to rebuild him is to trade parts with a mysterious champion Chao racer, so it's off to the races for Cream, Cheese, Amy, and Rouge! They'll have to keep up their winning streak or surrender Cheese to Clutch's evil ... clutches! Meanwhile, Sonic and Tails are being watched by a mysterious figure in Dr. Eggman's seemingly abandoned base, but when Rouge's team calls for help, will this shadowy character prove friend or foe? Please keep your arms and legs inside the ride at all times, folks, this is going to be a bumpy one!