Battling Combiners have landed on Planet Caminus - and it's none other than the powerful and logical Computron (composed of the Technobots) and the unruly and wild Menasor (composed of the Stunticons)!

News of the Combiner combat has reached Cybertron, which is currently led by a Council composed of Rodimus Prime, Starscream, and the Mistress of Flame. Former enemies and rivals, the three clearly have a tenuous relationship and discuss their different opinions on how to deal with this new impending threat.

Windblade's mischief has awoken the concern of the former leader of the Autobots - Optimus Prime! When he explains that he won't allow her to continue on this path of vengeance against all Combiners, Optimus is left with only one course of action - stop her no matter the cost!

Optimus Prime and Windblade have teamed-up to try and destroy the Enigma of Combination. But to do that, they're going to need the biggest gun they can find.

The unlikely trio of Optimus Prime, Megatron, and Windblade make their way to the headquarters of the Council in order to destroy the 'Enigma of Combination.' But, that's not so easy with a suspicious Rodimus Prime, Starscream, and Mistress of Flame standing firmly in their path.

Disaster looms when Devastator attacks, demanding the former Autobots and Decepticons give the Enigma of Combination to him! Our heroes and the Council scramble to respond to his onslaught when another Combiner arrives on the scene to also claim the Enigma of Combination for herself. Enter Victorion!