The Spy: Undercover Operation

The Spy: Undercover Operation centers on Chul-soo, South Korea’s top secret agent who leads a dual life. To the national intelligence agency, he is an unstoppable, deadly operative capable of handling high-stakes international crises. To his wife, Young-hee, he is a mild-mannered, constantly apologizing flight attendant supervisor who frequently misses family commitments due to his sudden work trips. Desperate to keep his real identity hidden, Chul-soo goes to extreme lengths to maintain the illusion of an ordinary domestic life.

His worlds collide disastrously when he is assigned to a critical covert mission in Bangkok involving a high-profile target and international terrorists. Unbeknownst to him, Young-hee also travels to Thailand for work and ends up falling under the spell of Ryan, a charming and dangerous mystery man with ties to the covert threat Chul-soo is pursuing. Trapped between keeping his country safe and saving his marriage, Chul-soo must execute lethal spy maneuvers in disguise while secretly sabotaging Ryan’s romantic advances on his wife.

Combining explosive action choreography with sharp marital comedy, the film follows Chul-soo as he uses cutting-edge intelligence gear not just to neutralize global threats, but to eavesdrop on his wife’s dates. Filled with high-octane chases, gunfire, and hilarious undercover mishaps, the story reaches a climax where national security and personal trust hang delicately in the balance.