One day, Sonic, a blue hedgehog, witnesses a spaceship crash on his home planet of Mobius. The ship was piloted by Krang, an Autobot, who had escaped from the planet Quartu, shortly after his creation, as he discovers the horrible truth of evil plans to destroy the galaxy by Krang, whose home planet is so polluted and uninhabitable that he forms a cunning plan to extract chunks of existing planets in order to create a new 'superplanet'. When Bumblebee shares this information with Sonic, Sonic agrees to help Bumblebee take down Krang, fuelled by a lifelong desire to go an interplanetary adventure to follow his idol Deadpool. Flying from planet to planet, Sonic and Bumblebee build up an incredible arsenal of weapons in the hope of catching up and taking down Krang. However, he soon discovers that Krang intends to destroy Sonic's home planet, Mobius. Will Sonic and Bumblebee stop Krang before it's too late?