Byeong-gu believes that the world is on the verge of an alien invasion, and sets out to save the world.

Twin brothers Woo-sin and Soo-hyun lose their father in a murder case. Twenty-two years later, the brothers seek to clear their father's name.

Byun Hyun, confident, naive, warm-hearted and a son of a wealthy family, starts living in a poor area, where he meets Baek Joon, a positive woman who works part-time jobs to make ends meet.

Joseon's top detective Kim Min attempts to track down those responsible for circulating massive amounts of counterfeit silver bullion in Joseon. He also tries to find the missing sibling of a young girl.

Tae-jung, the part-time worker of a DVD room, hides drugs in room #7 in exchange for wiping out his debt. When he goes back to the room to retrieve the drugs, he realizes that the door is ...