After ten long years, the iron-fisted rule of Doctor Robotnik over planet Mobius was believed to have finally ended! With the technological tyrant vanquished and his polluted factories shut down, order and beauty were restored to the city of Mobotropolis. Now the villain has returned to wreak havoc once more, but there are many who are willing to stand against him in the fight for freedom. The bravest among them is a brash, blue streak who just happens to be the fastest thing alive!