What happened to South Korea in Train to Busan?

Train to Busan is a South Korean action-horror film directed by Yeon Sang-ho. The movie is about a group of passengers who are trapped on a train during a zombie outbreak in South Korea. The film was released in 2016 and was a commercial success, grossing over $93 million worldwide.

The film follows a group of passengers on a train from Seoul to Busan, a city that is rumored to be safe from the infection. Along the way, they face various challenges and dangers as they try to survive and reach their destination.

The film shows how the zombie outbreak spreads rapidly throughout South Korea, overwhelming the government and military forces. The zombies are fast, vicious, and relentless, and can infect others with a single bite. The film also explores the themes of social class, selfishness, sacrifice, and family.

Train to Busan was a critical and commercial success, becoming one of the highest-grossing Korean films of all time. It also received positive reviews for its thrilling action sequences, emotional drama and social commentary.