On 31 January 1968, 31 North Korean commandos infiltrated South Korea in a failed mission to assassinate President Park Chung-hee. In revenge, the South Korean military assembled a team of 31 criminals on the island of Silmido to kill Kim Il-sung for a suicide mission to redeem their honor, but was cancelled, leaving them frustrated. It is loosely based on a military uprising in the 1970s.

On Haeundae Beach, a guilt-ridden fisherman takes care of a woman whose father accidentally got killed. A scientist reunites with his ex-wife and a daughter who doesn't even remember his face. And a poor rescue worker falls in love with a rich city girl. When they all find out a gigantic tsunami will hit the beach, they realize they only have 10 minutes to escape.

Story of Rikidozan, a sumo wrestler who can only achieve limited success in Japan because he's half Korean. But when Rikidozan goes to the United States and discovers professional wrestling, he becomes a hero back home.

Chan Young (No Joon Ho) and Yoon Hee (Kim Yeon Soo) are the seemingly perfect couple. After over ten years of marriage, they suddenly get divorced, much to the surprise of everyone around them. The reason for their separation is a big mystery. Even after their divorce, Chan Young and Yoon Hee continue to happily see each other as good friends. Their odd relationship comes to another crossroad when Yoon Hee’s old friend Seon Young (Kim Hyun Sook) and her son move in with her.