The AllSpark, the source of all Cybertronian life, was launched into space by Optimus Prime, leader of the Autobots, to keep it from falling into the hands of Megatron, leader of the Decepticons. The AllSpark lands on a planet called Mobius, home of Sonic the Hedgehog. The Autobots join forces with Sonic & his friends to protect Mobius as they don't want it to share the same fate as Cybertron and keep the AllSpark from the Decepticons.
