Cybertron is ravaged by civil war between
Autobots and
Decepticons. In an attempt to end the conflict,
Megatron considers using the AllSpark to reformat the Autobots, but
Optimus Prime wants to prevent that from happening, even if that means destroying Cybertron, itself, in order to save it. Early on,
Bumblebee and
Wheeljack discover a space bridge while searching for Energon. They were apprehended by Decepticons
Starscream,
Thundercracker, and
Jetfire. When the Autobots attempt to escape, they encounter Megatron, but are saved by Optimus Prime who engages Megatron and introduces Bumblebee to the rest of the Autobots on the
Ark. Bumblebee leaves, claiming that "he doesn't want to fight their war." In the second episode,
Ultra Magnus surrenders to the Decepticons, as he repeatedly says that he is "tired of endless war." Megatron tortures Magnus for the location of the Autobot base, after using Magnus' comlink to lure the Autobots into a trap. This ambush results in the supposed death of the Decepticon
Impactor, who is later revealed to be alive and switches sides after being repaired by the Autobot
Ratchet.
Wheeljack leads the rest of the Autobots to Ratchet, and, after a brief argument from
Mirage, the Autobots convince Ratchet to repair the space bridge found by Wheeljack and Bumblebee. Jetfire and
Skywarp eventually find the Autobot base, but Jetfire defects and defeats Skywarp. At the end of the series,
Optimus Prime throws the Allspark through the repaired space bridge to an unknown location.
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Chapter 2: "Earthrise"[edit]
The Transformers leave Cybertron in search for the AllSpark, leading the Autobots and Decepticons to land on
Earth. Mercenary Transformers board the Arc and battle the
Autobots, and in the end the
Autobots and
Decepticons work together to defeat
Scorponok.
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Chapter 3: "Kingdom"[edit]
Worlds collide when the
Maximals and
Predacons join the fight, coming together with the Autobots and Decepticons in an epic battle that will alter their destiny forever. This series takes characters from the
Beast Wars continuity.