Episode Title:The Rebirth, Part 2.Episode Description:The operation to merge the Autobots and Nebulans into Headmasters proves to be a success when they go to rescue their captured friends. But the Decepticons join forces with the merciless Hive to counter-attack as Decepticon Headmasters and Targetmasters. While on Cybertron, Optimus Prime merges with Vector Sigma and discovers the deadly secret of Plasma Energy. But while on Nebulos, Zarak, evil leader of the Nebulan Hive, succeeds in turning the Hive's entire city into a Decepticon super robot, the most powerful ever created, the deadly Scorponok.