The Rebirth, Part 3

With Arcee, Daniel and the Plasma Energy Chamber key, Galvatron embarks on a new plan for great power threatening to destroy Earth and possibly Cybertron. On top of that, the remaining Decepticons and the Hive's Scorponok are coming. Every available Autobot and ally will be needed for the coming fight, but they may be overmatched this time. The real answer lies on Nebulos, where Spike and Cerebros find a Hive city. Said city may provide the most powerful weapon of all.