Yang Joon-mo

Though it places his own life in danger, a look-alike commoner secretly takes the place of a poisoned king to save his country from falling into chaos.

Tae-hun causes trouble for the his unit with his antics. He does not take much seriously until a dogfight leaves a pilot dead and another missing. Tae-hun and the other members of his unit launch a rescue mission to prevent a war from breaking out.