Poseidon(2011)

Poseidon is an action thriller following a covert Marines unit hunting Choi Hee Gon, a ruthless maritime crime boss. Years earlier, Hee Gon murdered team leader Kwon Jung Ryool's wife and the families of his operatives, forcing the unit to disband. Agent Kim Sun Woo went deep undercover to survive. When Poseidon's reputation crumbles, Jung Ryool pulls Sun Woo back from the shadows for one final mission: destroy Hee Gon. Joined by the formidable corporal Lee Soo Yoon, the reformed team launches a dangerous assault on the kingpin. Driven by vengeance and redemption, Poseidon balances high-stakes military operations with personal reckoning as the unit closes in on their target.