Manager Zo, an agent of the South Korean National Intelligence Service (NIS) discovers crucial information while collecting intel on North Korea's movements. While dispatched in Southeast Asia, his North Korean informant (HUMINT) provides him with intel that leads him to Vladivostok. However, she faces an untimely death, only leaving him with clues. Coincidentally, North Korean Ministry of State Security dispatches Captain Park Geon to investigate a missing person case in... see more