It's been 1 month since Dr. Eggman's defeat in the events of 'Sonic Forces'. Sonic stops by to help a village and comes across his best friend Tails. Together they start to unravel the mystery behind Eggman's disappearance
While Sonic saves a small village from being attacked, he runs into Amy Rose, whom tries to persuade him to join the Resistance again. They soon realize they both must protect the village from a sudden robot invasion.