The movie is based on the video game franchise of the same name by Sega.
Sonic is a blue anthropomorphic hedgehog from Planet Mobius, who comes to Earth to escape baddies seeking to harness his power of super-speed. After accidentally causing a massive power outage while hiding out in the town of Green Hills, Montana, he is targeted by the government who hire the malevolent roboticist Dr. Robotnik to hunt him down. Meanwhile, ex-SFPD officer-turned-Green Hills sheriff Tom Wachowski meets Sonic and decides to help him evade capture, collect his rings, and stop Robotnik from using Sonic's powers for world domination.
Nice story . Very interesting.