Sonic, Tails, Amy, Knuckles, Shadow, Rouge, Omega, and Espio must unite to protect the world when time begins to collapse in on itself. Meanwhile they must travel through time as well to avoid Silver and Blaze, who are hunting the one they feel is responsible for the catastrophic future, Sonic the Hedgehog. Little do they know the real threat is their the whole time, Mephilles The Dark.
