Complex sentence: Equinox'conscious merges some of the remaining robots into one giant robot that Equinox' mind can inhabit, but the captured robot Batman frees himself from Equinox's control and summons three Batmen from other times to help him fight Equinox.
Split into simpler sentences: Equinox'consciousness merges some of the remaining robots into one giant robot that Equinox' mind can inhabit. But the captured robot Batman frees himself from Equinox's control and summons three Batmen from other times to help him fight Equinox.