Saving the world is a piece of cake when you're a speedy blue hedgehog. So easy, in fact, that Sonic the Hedgehog has done it about... carry the one, add the zero... 899 times, according to Tails' calculations. And Sonic is about to go on his 900th world-saving adventure because... Hot potato, hot potato! Sonic and his friends are playing a game of hot potato! Only the potato is the Warp Topaz and instead of burning their hands, it could warp the whole world into oblivion. Or something like that. The gang is passing off the Warp Topaz in a relay race to get rid of it once and for all. Celebrate the mind-blowing 900th-issue milestone with superstars Ian Flynn, Evan Stanley, Caleb Goellner, Daniel Barnes, Aaron Hammerstrom, and returning Sonic writer Nigel Kitching as they participate in a relay race of their own, telling this story in six speed-racing, nail-biting, egg-kicking parts!