
S01E01 Han Ji Hyuk Returns
Agent Han Ji Hyuk gets discovered on a fishing boat. The National Intelligence Service gets notified of his identity number, but his file is locked. When they realize he's their ace agent who went missing...
After watching a video of himself disclosing his mission, Han Ji Hyuk seeks to find the rat in the agency and the last piece of the puzzle. As he narrows down his suspects, Jang Gwang Cheol, the second-in-command of the Huayang Gang, gets taken into custody. With his arrest, the police get a threatening call for his release or suffer the consequences.
Han Ji-hyuk, an NIS agent gone MIA, returns after one year to join a new team as he searches for his lost past.