American Assassin (2017)

Vince Flynn's 16-part counterterrorism series kicks off in film form with the prequel, starring Teen Wolf's Dylan O'Brien as Mitch Rapp, a Milennial whose fiance was murdered by terrorists while they were on vacation in Spain. He decides on vengeance, transforming his body into a muscled machine (that yes, we get to see shirtless quite a bit) and joining the CIA's counterterrorism unit as a black ops specialist alongside Stan (Michael Keaton). It turns out that their biggest enemy isn't the terrorists they were initially chasing - it's Ghost, played by the sexy Taylor Kitsch. That's a lot of sexy stars without their shirts!