'Transformers: Age Of Extinction' Trailer: Watch Now

Optimus Prime transforms Mark Wahlberg's public image in the newest look at Michael Bay's fourth 'Transformers' film.

"Hey, Optimus Prime. Say hi to your mother for me, alright?"

Those are not the words uttered by Mark Wahlberg in the brand-new trailer for "Transformers: Age of Extinction," unfortunately; just the words we hope wind up in the actual film itself. Instead, the latest look at footage from director Michael Bay's fourth "Transformers" movie highlights another tone entirely -- something considerably darker and more action-packed than even the wildest Andy Samberg-fueled fever-dream could cook up.

The new "Transformers" movie casts aside the Shia LaBeouf of yesterday (and not a moment too soon, given the actor's recent [article id="1722022"]public image problems[/article]), leaning toward a new corner of the mythology instead. Wahlberg represents the flesh-and-blood side of the cast, playing Cade Yeager, an inventor and single father, trying to protect his daughter Tessa (Nicola Peltz) from her race car driver boyfriend, Shane (Jack Reynor).

Cade's overprotectiveness goes into overdrive with new focus when he's thrust into the middle of the ancient rivalry between Optimus Prime's Autobots and the ruthless Decepticons. Four years have passed since the Battle of Chicago, but the Transformers' impact has left a deep scar on all of mankind -- and now, just as that scar has started to heal, it looks like the eternal conflict between Autobots and Decepticons is about to reopen old wounds.

While [article id="1679451"]some fans are divided over Michael Bay's return to the "Transformers" universe[/article], there's one silver lining that just about everyone can agree upon: Finally, at long last, we're getting the Dinobots in a live-action "Transformers" movie. There's simply no way that Grimlock doesn't work on the big-screen ... right?

"Transformers: Age of Extinction" hits theaters on June 27.