D-Day

Sang-hyeon (Cha In-Pyo) is a third-rate comedian who works in a shady nightclub. One day, a man comes into the club with his son and a briefcase. The man looks for the owner but he's not around. Later that evening Sang-hyeon witnesses a car accident involving the man that came into the nightclub. The man is dying and he asks Sang-hyeon to take his son and briefcase to his wife. Sang-hyeon goes to the deceased man's family with the son and briefcase. The family asks Sang-hyeon to take the son Jae-yeong to his mother in Donghae, South Korea. Sang-hyeon is a gambling addict and because of this is in heavy debt. The family offers to pay Sang-hyeon a large amount of money if he would take the son. Sang-hyeon already dreams of stopping at a casino in nearby Jeongseon after delivering the boy.

Han Jung-Rok is a former national archer and current deliveryman from 2019. He ends up traveling to the past with his first love, Lee Hye-Jin and meets Im Kkeok-Jeong, a famous thief from the Joseon dynasty. Together, they struggle to survive, put their lives at stake for the people they love, and share a strong friendship.

After graduating from high school Min-seo (Seung-Ri) fails to get into college. He spends the next year cramming for his entrance exam once again. Jeong-hun (T.O.P) is a university student fresh out of high school school. Late one evening, a high school girl dies. Earlier that evening, Min-seo filmed the girl in an internet cafe without her knowing. Min-seo, Jeong-hun, and another girl named Eun-yeong (Heo Lee-Jae) - who went to the same high school as the dead girl - all become murder suspects in the death of that girl. All three of these young suspects are 19 years old. They don't know each other, but quickly become fugitives from the law. To clear their names they work to uncover the truth behind the girl's death ...