In 1933, when Korea was under Japanese occupation, five people in Gyeongseong are suspected to be "Phantom" spies of the anti-Japanese organization.

In 1999, a robbery-murder case occurs in a small supermarket in Samnye, Jeonbuk province. The police investigation quickly narrows down to three boys from the neighborhood, and these boys are falsely accused of being murderers overnight and are imprisoned without understanding what is happening. The following year, veteran detective Hwang Joon-cheol is newly appointed as the head of Crime Investigation Division. He receives a tip about the real culprits and embarks on a reinvestigation to clear the boys' names. However, the interference of the detective responsible for the case at the time, Choi Woo-sung, leads to everything falling apart, and Hwang is demoted. Sixteen years later, the sole witness of the case and daughter of the victim, Yoon Mi-sook, and the boys return to Hwang, seeking justice...

Set in the 1980s in Gunsan, a US military camptown, 15-year-old Sangguk falls in love with a prostitute and has his first sexual experience. He witnesses the wounds and struggles of sex workers in this US military camp town.

A case of the flu quickly morphs into a pandemic. As the death toll mounts and the living panic, the government plans extreme measures to contain it.

In Sector 7, an underwater oil field located south of Jeju Island, Hae-jun is working as a marine equipment manager on an oil prospecting ship called Eclipse. Joining the crew later is Jeong-man, a former colleague of Hae-jun's father, assigned to Eclipse as captain. Though his job is to oversee the withdrawal of the ship, he suggests conducting some drilling one last time.

A mysterious informant calls a broadcast news anchor to request that the anchor report on the informant’s inevitable death.