As Jhiaxus and the new Cybertronians continue their remorseless advance across the universe, colonising and mechaforming planets as they go, the Autobots and the Decepticons enter a wary alliance against this common foe. But the threat of Jhiaxus pales in comparison to the Swarm, a faceless mass consuming Transformers wholesale. What is it? Where did it come from? The answers strike close to home, and for Optimus Prime only one course of action remains... he must die!
Plus, treachery from Starscream (of course), Megatron unleashed and the most shocking ending of all time!