The story of the 2019 South Korean drama centers on Cha Dal-gun (played by Lee Seung-gi), a hardworking stuntman who loses his young nephew in a mysterious plane crash bound for Morocco. The Core Conflict

(Bae Suzy): A rookie agent for the National Intelligence Service (NIS) working undercover in Morocco who eventually joins forces with Dal-gun.

: While in Morocco for the memorial, Dal-gun spots a man he recognizes from his nephew’s final video—someone who was supposedly a passenger on the doomed flight but is alive and well.

: A civilian airliner carrying over 200 people, including a children's Taekwondo team, crashes in what is initially labeled a mechanical failure.