Titled Peninsula, the film will follow a soldier who escapes from the zombie-infected South Korea. But later, he and his crew are deployed back to South Korea for a mission. There they meet uninfected survivors and feel the wrath of zombie attacks. But if the film is a sequel to Train to Busan, then why is it titled Peninsula? In an interview with ScreenDaily, Sang-ho Yeon had this to say: Yeon also said that he was initially sceptical about returning to the franchise after the surprise success of Train to Busan. But then, something inspired him.