2015 год. It's non-stop action in this collection of some of Sonic's greatest--and strangest--battles! When Sonic and Knuckles first fought, it was because the Rad Red echidna was tricked by Dr. Eggman. Now they clash again, this time because the Blue Blur is under the doctor's control! And it only gets worse when the witch Enchantress bewitches Sonic and sends him against Archie's very own Sabrina the Teenage Witch! Sonic must race death itself when a strange ray robs his youth with every step he takes! And he'll get no help from Knuckles--everyone's favorite Guardian is dealing with the Dark Legion's latest plot to conquer Angel Island!