Sonic and his friends are ready to relax after the series-shaking events of Sonic the Hedgehog #200, but their plans soon change with the explosive arrival of an old villain! A villain who brings grim tidings of a new threat that's claimed the world! Who are the new faces of evil? Will Sonic rise to the occasion, or will he be busy fighting a mystery guest star? Then, Espio the Chameleon gets a visitor of his own, and news that will change his standing in the Chaotix forever!