Sonic's hometown of New Mobotropolis has been devastated by unspeakable threats from beyond... but what about those within? There's talk of revolution, and Sonic will have to choose sides! Will the leaders of the rebellion drive a wedge between Sonic and Tails forever? It's the fight everyone's feared but never thought they'd see - friend vs. friend, Sonic vs. Tails!
Tails's long lost father has rattle a few cages with the Acorn Kingdom which lands in him in jail. Sonic finds his loyalty divided by either choosing to serve his king or his best friend.