Ji Hyuk becomes a suspect and gets chased down by the NIS. He can't trust anyone and only has one choice. To find Su Yeon's shooter and find evidence to prove his innocence. Meanwhile, Director Kang Pil Ho takes over the case and tries to bring in Ji Hyuk.

Ji Hyuk now knows the person who has been leaving him a trail of clues about his lost memory. Amidst the collapse of the Foreign Intelligence Bureau, Ji Hyuk and Je Yi get one step closer to finding out the purpose behind Sangmuhoe's objective. Meanwhile, Ji Hyuk vows to keep his promise with Su Yeon.