Sleeper Cell

O Ha Na is a lowly police officer who lacks a sense of duty and believes that it is worth bending the rules in order to achieve your aims. She meets and begins to investigate Ko Jin Hyeok, an elite intelligence agent, and they clash instantly based on their different morals. Their initial dislike of each other masks their romantic attraction, but this development is hindered by the existence of Choi Eun Seo, Jin Hyeok's first love.

Nikita is a drug-addicted juvenile delinquent who was accused of killing a police officer in cold blood during an attempted robbery of a pharmacy. She is later arrested and sentenced to death by lethal injection, upon which she was secretly drugged by the government, faking her death. Nikita is then "recruited" by a secret government organization and transformed into a highly skilled assassin who cannot be traced.

FBI agent Angela Clinton has the exceptional gift of knowing when someone is lying. She discovered this skill at age 14, when she learned her "average" American parents were actually spies. Attempting to right her parents' wrong, Angela is now working with the same agency that brought her parents down.

Inspired by actual cases and experiences, Numb3rs depicts the confluence of police work and mathematics in solving crime as an FBI agent recruits his mathematical genius brother to help solve a wide range of challenging crimes in Los Angeles from a very different perspective.

The series focused on an FBI Crisis Negotiation Unit whose members negotiated hostage situations and shared relationships.