Eggman who aims to utilize this mysterious evil force to establish domination across these universes after all colour is stripped from their respective 'realms' leaving them lifeless 'white spaces'

In this game, the 'classic' Sonic found his universe intermingling with the 'future' Sonic as they encounter mysterious 'time holes' caused by a mysterious force of evil that has the ability to travel between universes

The storyline is fairly basic, an unknown force has started tearing through time and has capture modern Sonic's friends, scattering them throughout time and they must be rescued by completing each stage