national intelligence service (nis)

Chinese secret agent Da-hee receives intel that a large number of illegal firearms are being smuggled into Korea and is sent to investigate the case. She meets Su-han, who is supposed ...

After a high-ranking North Korean official requests asylum, KCIA Foreign Unit chief Park Pyong-ho and Domestic Unit chief Kim Jung-do are tasked with uncovering a North Korean spy, ...

Nicknamed after a human-devouring spirit, the ruthless leader of an overseas black ops team takes up a dangerous mission in a city riddled with spies.

A group of Korean tourists is taken hostage by an extremist Taliban group in Afghanistan. The Korean government dispatches Jae-ho, known as one of Korea’s most skilled diplomats, in ...