Things heat up for the Biker Mice when the infamous Sir Richard Brand-Something arrives with hopes of winning a Regenerator for his own purposes. Joining forces with Supreme Commander Hairball, Sir Richard puts his plans (and his evil robots Bangers and Mash) into action – giving the Biker Mice a ride for their money. In the meantime, General Stoker is finding that the Earth's tetra-hydrocarbons are producing some unexpected (and unwanted) side effects.