After being severally beaten at the hands of Dr. Robotnik, AKA Eggman, Sonic and his remaining Freedom Fighters undertake a daring rescue mission to save the citizens of Knothole. But just when things seem to clear up, Sonic's Freedom Fighters, Knuckles Chaotix, and several airships from the Egg Fleet are thrown into a peaceful world that had sealed itself away from the rest of the multiverse. With new rules to play by, new allies on each side, and no visible way of getting home, how will the Hero's of Mobius and there new friends fare against the Eggman Empire.