Hyunjun and Sawoo, close friends and rivals from the South Korean special forces, are recruited by the secret agency NSS. They both fall for Seunghee, the beautiful but lethal profiling specialist at NSS. When they are faced against each other in a nuclear terrorist attack, they are forced to make their final decision and Seunghee's formidable secret is revealed.

The story follows a Korean boxer/fighter who dreams of getting out of his little town to see the world. As there is war going on the only way out he can see is to sign up to be a much needed pilot of the Japanese army. But he discovers that the Japanese are more interested in their ability to crash the planes rather than fly them.