Dylan O'Brien Gets Intense In New 'American Assassin' Trailer - Watch It!

The latest trailer for Dylan O’Brien‘s upcoming film American Assassin is action-packed!

The 25-year-old actor stars in the flick which follows his character as he sets out for revenge following the death of his fianc�e in a terrorist attack.

Dylan‘s character gets recruited by black ops and is trained by a CIA agent, played by Michael Keaton, to track and kill terrorists.

He eventually gets dispatched to join a Turkish agent on a mission to stop a mysterious operative from unleashing chaos of international proportions.

American Assassin is set to hit theaters on September 15th.

Check out the entire red band trailer below…