After his entire unit is betrayed by their country, Jin-pyo decides to raise his late friend's son up, as a warrior, in order to get revenge on the five politicians that were in charge of his unit's mission.
Yun-seong goes under cover, as a doctor for the Blue House, in order to get close to his first target, Senator Lee Kyung-wan. Kim Na-na gets a job as a bodyguard to the president's daughter.
