No one knows how. No one knows why. But Optimus Prime is fighting a two-headed dragon in Transformers: The Last Knight.
A (way too) early promotional banner for the upcoming film from Michael Bay shows the Autobot leader drawing his sword against the fantastic beast from medieval times.
See the full banner above and a close-up of the dragon below.
Who the dragon really is is up for speculation. Megatron, the revived leader of the Decepticons, will be in the film in some form. He has transformed himself into a dragon before in some of the Transformers stories.
Optimus Prime also fought a dragon when he and some other Transformers got sent back to the time of King Arthur, although that was a real flesh and blood dragon.
Sources tell us that the dragon in the film will possibly be Predaking, and he will have THREE heads.
Transformers: The Last Knight is the fifth installment in the Transformers film series. It is set to be released on June 23, 2017.SuperFable