The Transformers have lived among us longer than we'd realized, according to newly unearthed microfiche detailing the robotic aliens' multiple interactions with the human race. Stretching back decades, possibly even centuries, photos of soldiers alongside their metallic allies offer fresh clues as to the extent of our shared, secret history about to be revealed in "Transformers: The Last Knight."

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It was recently revealed that one character in particular, the Autobot known as Bumblebee, has a history on Earth that stretches back well beyond his 2007 big screen debut in director Michael Bay's original "Transformers" film. In footage recently shown at CinemaCon, Anthony Hopkins’s character reveals that he met Bumblebee when Hopkins was a boy. This suggests that either Bumblebee has been on Earth for much longer than was originally believed, or that he has visited our planet on more than one occasion; with the arrival of the above promo, we're open the theory that both answers may be possible, considering how old some of the photos are.

“The Last Knight” shatters the core myths of the “Transformers” franchise and redefines what it means to be a hero. Humans and Transformers are at war; Optimus Prime is gone. The key to saving our future lies buried in the secrets of the past, in the hidden history of Transformers on Earth. Saving our world falls upon the shoulders of an unlikely alliance: Cade Yeager (Mark Wahlberg); Bumblebee; an English Lord (Sir Anthony Hopkins); and an Oxford Professor (Laura Haddock).

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There comes a moment in everyone’s life when we are called upon to make a difference. In Transformers: The Last Knight, the hunted will become heroes. Heroes will become villains. Only one world will survive: theirs, or ours.

The film sets the stage for the planned expansion of the $3.78 billion franchise that includes a “Bumblebee” spinoff slated for 2018, another “Transformers” sequel in 2019, and a possible origin movie for the constantly warring Autobots and Decepticons.

Michael Bay’s fifth and final franchise installment as director, “Transformers: The Last Knight” stars franchise veterans Mark Wahlberg, Stanley Tucci, Josh Duhamel, Tyrese Gibson and John Turturro, joined by newcomers Isabela Moner, Liam Garrigan, Jerrod Carmichael, Mitch Pileggi, Laura Haddock, Santago Cabrera and Anthony Hopkins. The film opens June 23.