Forced by fate into a role he never wished for himself, OPTIMUS PRIMAL led a rag-tag group of scientists and warriors in a desperate battle against a hardened gang of madmen and killers led by the PREDACON® criminal MEGATRON®. Trapped and alone, the MAXIMAL™ leader fought to defend the primitive world on which they had crashed, and to prevent the insane machinations of a villain that would eventually become the most dangerous enemy ever to blight the history of CYBERTRON™.