'Transformers: The Last Knight' Teaser Promises an Untold "Secret History"

Sir Anthony Hopkins knows the real deal about the robots in disguise.

Everything you know about Transformers is wrong. Maybe.

Ahead of next week's debut of the latest trailer for Michael Bay's Transformers: The Last Knight, Paramount has unveiled a trailer teaser in which Sir Anthony Hopkins melodramatically promises to release "the secret history of Transformers."

What, exactly, is that history going to be? That's unclear at best, but the teaser suggests that it's got something to do with the Middle Ages — given that Hopkins also says that the secret has been kept for "a thousand years," and there's a brief glimpse of medieval knights at war with each other — while avoiding balls of flame that apparently reoccur in the present day, barely missing Mark Wahlberg. But what could Transformers turn into back then? Horses? Unnaturally large shields?

The new trailer for The Last Knight will be released on Wednesday, with the movie following June 23.