Sonic has finally been defeated! Robotnik rules the world! All hope is lost without him. Tails forms an underground resistance to see if they could foil Robotnik themselves without Sonic (if he's still alive that is). They recruit a newcomer along with the resistance, an avatar character who's been haunted by Robotnik's powerful apprentice, Infinite. Can the Sonic Forces save the world on their own? What happened to Sonic?
