During the Japanese colonial era, roughly 400 Korean people, who were forced onto Battleship Island 'Hashima Island' to mine for coal, attempt to escape.
A spotted woman and the men who wants to sneak a peek at her! Chang-woo spend some quality time with his wife Eun-joo on their wedding anniversary and he takes a video of them having sex as a souvenir. However, he realizes that the cell phone he took the video with isn't his and it's too late because the video has been saved into the cloud server of the actual owner. The cell phone owner blackmails Eun-joo into a dangerous deal with the video...
There are 'dogs' that target Koreans while they're on vacation abroad. Hyeong-sin and Ji-hoon kidnap and kill these people without a drop of guilt. While they are in Korea for a period of time, the family of the people kill chase after them like dogs that never let go once they bite. Doo-jin, who is abandoned by Hyeong-sin's gang, kidnap a new victim alone. A middle-aged woman tracks down Hyeong-jin's gang to find her son who went missing during his vacation. However, the victim and kidnapper are tangled in many complicated ways...
In August 1950, waiting for UN troops to arrive, the South Korean army assembled to protect Nakdong River. Only 71 student-soldiers are left behind to guard the city of Pohang. Now they are on a mission to defend the country from North Korean troops.
A student and her teacher go to a secluded area in the middle of nowhere to practice open-air singing. There they run into a gang of local thugs who initially seem friendly but slowly reveal their sinister side.
