Rock BottomBackdropTransformers: PrimePoster8.7Rated 8.7 on TMDBTransformers: PrimeRock BottomSeason 1, Episode 19GalleryTwo patrolling Autobots end up trapped in a cave with their enemies, Starscream and Megatron.CastPeter CullenOptimus Prime (voice)Jeffrey CombsRatchet (voice)Frank WelkerMegatron (voice)
