In 1974, a shooting shocks South Korea. Detective Cheol-gu, who witnesses the attack, Jae-hwan, the city desk editor whose coverage is suppressed, and Young-il, a rookie reporter, begin to dig beneath the cover-up. As their pursuit of the truth deepens, they come to confront forces meant to remain unseen.

In a remote mountain village of 15th-century Joseon, humble headman Heung-do hears a rumor that any village hosting an exiled nobleman will be blessed with abundance and fortune. Hoping to bring prosperity to his impoverished community, he eagerly submits a petition to host one—unaware that his guest is none other than the fallen monarch, deposed boy-king Danjong.

'Monster Cop' Ma Seok-do investigates an illegal online gambling business led by a former STS Baek and an IT genius CEO Chang. Ma proposes an unexpected alliance to Jang and begins hunting down the criminals.

Jeong-yoon and Jong-bae own a car body repair shop together that gets in financial trouble. To help cover the losses and take care of her family, Jeong-yoon decides to smuggle thirty kilograms of cocaine.