Train to Busan (2016)

A man named Seok-woo, his estranged daughter Su-an, and other passengers become trapped on a speeding train in South Korea during a zombie outbreak. As the passengers become overtaken by the undead passengers, and gradually become infected, the number of defenders dwindle as the safety of available space within the railroad vehicle dwindles. With each station at each stop proves to also be overtaken, the train continues along as its passengers hope to escape before they are all infected. Despite insurmountable odds, the father-daughter duo fight to survive by mending their relationship and creating alliances with the remaining passengers, all while overcoming the rising forces of the army of undead plaguing the limited train space.^{[9][10][11][12][13]}

Seoul Station (2016)

Prior to the events of the zombie outbreak in Busan, Hye-sun and her boyfriend Ki-woong arrive at a train station in Seoul, South Korea. Hye-sun, who recently escaped her life of slavery at a brothel, now lives with Ki-woong in a troubled relationship. As they face financial troubles, Ki-woong approaches Hye-sun with plans to procuring her for services on an adult online website. As their argument at the station begins, the pair separate just as a bloodied homeless man stumbles into the train station area and collapses. The man's younger brother frantically asks onlookers for help, though they are repulsed by the lack of cleanliness and social status of the men; the ailing man is left alone to die. This quickly changes however, when the man reanimates and attacks the crowd in a ravenous frenzy. As the infection begins to spread to those who are bitten, Hye-sun witnesses the ongoing bloodbath, while Ki-woong's search is intensified when her father Suk-gyu arrives looking for her. As the trio reunites, they fight for survival and race to stay ahead of the pandemonius epidemic. As their window for escape narrows, militant officials assemble to contain what the interpret as an insurrection. Despite their differences, the family struggles to board a train and avoid the ongoing attacks from the undead.^{[14][15][16][17][18]}

Train to Busan Presents: Peninsula (2020)

As a zombie epidemic quickly spreads over South Korea and the country is defeated in a day, Korean Marine Jung-seok races to get his family to a ship to escape the outbreak. The family passes a couple with a young daughter that pleads for assistance, though they leave them behind in their frantic escape. The passengers aboard the ship begin to succumb to similar ailments including Jung-seok's nephew. As his sister refuses to leave her child, Jung-seok is left to lock down the quarters to save the rest of the ship. As military officials arrive, his brother-in-law named Chul-min watches on mournfully watching his wife and son die. He resentfully states that Jung-seok should have done more to save his family. The forces of the world quarantine South Korea and lockdown its borders.

Four years later, the guilt-ridden pair are approached by a criminal mob group in Hong Kong, China to infiltrate South Korea to retrieve a truck filled with US$20 million. As the group creates a plan to reach their goal, Jung-seok and Chul-min negotiate half of the money as their earnings. Upon arrival, the team is ambushed and overtaken by a rogue militia named Unit 631, and an attracted army of undead. As Unit 631 escapes with the truck of money, Jung-seok and Chul-min are separated in the chaotic events. Jung-seok is rescued by two young girls, Joon and Yu-jin, who drive him back to their sanctuary community. As he meets with their mother and grandfather, Min-jung and Elder Kim, respectively, he quickly learns that she was the woman who begged him for help and he chose to leave behind four years ago. The group devise a plan to retrieve the money-filled truck from the criminal military that took it, by infiltrating their arena of underground zombie survival games; after which they will escape the country. In the course of events Jung-seok learns that Chul-min is alive and held therein, and sets out to rescue his estranged brother-in-law.

As the events escalate, he fights with determination to keep the members of his team alive, and seeks to redeem his mistake in leaving them behind years before. As they fight for survival against the advances of the undead, they race against the clock when an arriving helicopter will provide their escape.^{[19][20][21][22][23][24]}

Future

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