Good comes face-to-face with evil - and it's just like looking in a mirror as Sonic and the Freedom Fighters square off against their evil doppelgangers from another world! With King Scourge (the evil anti-Sonic from another dimension) and the Suppression Squad controlling Freedom HQ, Sonic and Amy are sent across time and space to Moebius - the Anti-Mobius, that is! They run into some familiar faces in this topsy-turvy world, but who is friend and who is foe?