CHAOS part 4 brings events to a devastating head: Megatron confronts his most formidable opponent yet... The Autobots scramble to keep out of the way of the Decepti-god's unstoppable rampage -- and Optimus Prime faces off against Galvatron, in a battle where the fate of the whole planet rests on the outcome! CHAOS concludes here and TRANSFORMERS will never be the same again!