On the distant planet of Cybertron, the birthplace of the Transformers, an enduring and destructive civil conflict continues to unfold. The valiant Autobots clash with the malevolent Decepticons in a war that has spanned millions of years. When the Decepticon leader, Megatron unearths a forbidden energy source that grants him the power to reshape the planet as he sees fit, Optimus Prime and the Autobots are compelled to join forces in a desperate bid to save their world from an ominous and perilous destiny.