The Transformers are back this summer in the highly anticipated, explosive third installment of Michael Bay's blockbuster franchise - and ET has an exclusive first look tonight!

Watch ET tonight for a first look at the exciting trailer, then come to ETonline Friday morning (8 a.m. Eastern, 5 a.m. Pacific) to watch the complete trailer.

After a 40-year secret is revealed, Shia LaBeouf, new onscreen girlfriend Rosie Huntington-Whiteley, Josh Duhamel and Tyrese Gibson face an alien invasion which may mean the end of Earth as we know it. Can the Autobots save us from the evil Decepticons?

Patrick Dempsey, John Malkovich, Frances McDormand and John Turturro also star.

'Transformers: Dark of the Moon' explodes into theaters everywhere in 3D July 1.

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