Autobots, Decepticons, Predaking and Predacons form an unlikely alliance to battle a resurrected Unicron.
Peter Cullen
Optimus Prime (voice)
Frank Welker
Megatron / Terrorcon (voice)
Steve Blum
Starscream / Darksteel (voice)
Jeffrey Combs
Ratchet (voice)
Will Friedle
Bumblebee (voice)
James Horan
Wheeljack (voice)
