IT:6

Taking place a few years after the events of the original series, the Biker Mice return to Earth. In this series, the lead antagonists are the evil Catatonians, a race of cat-like creatures who desire the greatest prize on Mars and the Regenerator while also having been rivals of the Plutarkians. In the process of obtaining it, they destroy it leaving the Biker Mice (including Stoker – see below) to flee to Earth to build a new one.