The Rebirth, Part 3

With Cybertron's fate in the balance, the Plasma Energy restores the planet to its golden age and brings the American series to a close.

With the arrival of Scorponok, the Autobots scatter, but Arcee and Daniel are captured. As the Decepticons depart in Scorponok, Optimus Prime orders the Autobots to move out. However, Spike insists on letting him and Cerebros remain behind. Though Optimus believes that Spike is their only hope if Galvatron should activate the Plasma Energy Chamber, he relents.

On Cybertron, Ultra Magnus's forces are fighting off the Decepticons, but the tide is turned when the Headmasters and Targetmasters arrive, allowing Galvatron to claim victory. Scourge and Cyclonus explain what happened on Nebulos, but Galvatron is so disgusted that he's on the verge of reducing all of them to scrap. However, Zarak explains that he has the Key, and has control over Scorponok. Though still disgusted, Galvatron agrees to at least talk, while ordering a new planetary engine he installed on Cybertron to be activated. They prepare to torture Daniel, but Arcee gives them the Key.

Heading for Cybertron, Optimus receives a vision from the spirit of Alpha Trion, telling the Autobot leader to preserve the key at all costs. However, Hot Rod and Kup inform Prime that Cybertron has disappeared. Realizing Galvatron's intentions, Optimus orders the shuttle to head for Earth. On Cybertron, which has entered the Sol system, Galvatron reveals that he intends to activate the Plasma Energy Chamber, and let the energy spread out and cause the sun to nova, destroying Earth and Cybertron. On Nebulos, Spike and Cerebros locate the Hive's city, and begin using long-abandoned controls to begin modifying the city.

Landing on Cybertron, the Autobots discover that their comrades have had their power packs removed, and their lives will end if they do not get immediate energon. The Nebulans think that they should just destroy the Key, lest the released energy reach Nebulos. However, Prime remains adamant, explaining that Vector Sigma has a plan. Unwilling to take the risk, the Nebulans simply abandon the Autobots and head to destroy the key, pursued by the weaponless and headless Autobots. However, they are attacked by the Decepticons, who are preparing to leave. Just then, Spike and Cerebros arrive in the Hive's converted city, which transforms into Fortress Maximus, with Spike and Cerebros as its components. Fortress Maximus engages Scorponok, causing the Decepticons and the Hive to flee. Spike and the Nebulans deactivate the Plasma Energy Chamber, but not before it sends a wave of energy into the sun.

Working quickly, Spike and the Nebulans begin preparing Vector Sigma to absorb the excess solar energy. Pumping it straight into the supercomputer, it directs the energy into Cybertron's storage capacitors, resulting in the complete revitalization of Cybertron. As Cerebros reactivates, he begs Spike to deactivate him, no longer wishing to endure the Great War. However, Spike tells him that Cybertron has been revitalized. Optimus declares that the Headmasters and Targetmasters are to become the guardians of Nebulos, and to destroy the Hive's machines. When this is done, Cerebros will become the guardian of Nebulos, and live in peace.

However, Scorponok survived the destruction, and it is obvious that Galvatron and Zarak do not see eye to eye. Galvatron plans to raid hundreds of worlds and destroy Cybertron, then conquer the universe, but Zarak doubts that Galvatron will be the ruler of the galaxy. As the would-be tyrants bicker, Nebulos stands free, while Cybertron begins a second Golden Age under the rule of Optimus Prime and the Autobots.

—Galvatron doesn't faze Ultra Magnus

—Fortress Maximus speaking for the first and only time in Generation 1—with a voice reminiscent of Patrick Allen.

—Galvatron, in reference to Scorponok's city mode.

—Daniel and Arcee set some...concepts in motion. Oh god...

—Galvatron and Zarak close the series.