After the events of Sonic the Hedgehog The Movie, Sonic has finally accepted his true destiny as a hero and became a part of his new family with Tails and his parents, as Sonic and Tails became brothers and best friends and finally going on the adventures together, until a planet that so conveniently comes into Mobius' orbit called Little Planet, But an wise owl, Sonic’s caretaker and mentor and a friend of the Prower family, Longclaw gets to come with Sonic and Tails. But they're not the only ones who are on Little Planet until they meet fortune card loving Amy Rose, a sweet girl who is obsessed with Sonic since he has a crush on her and her friend Cream the Rabbit with her chao pet Cheese. Dr. Eggman has returned for his next greatest plan is to manipulate time and space sending Sonic and his friends into a dark future ruled by him. So, he invents the ultimate creation: a stronger, faster, more powerful robot duplicate of Sonic called Metal Sonic. Sonic gets separated from Tails and Longclaw in a battle with the metal faker. Now Sonic must use find and use all the mystical time stones to send him and his friends back before save Amy from Metal Sonic and stop Eggman once again from taking over Little Planet! While Sonic traverses through the past, present and future.
