Wanting to leave their dystopian world behind for a faraway paradise, three outlaws plot a money heist — and draw the attention of a vicious killer.

All unemployed, Ki-taek’s family takes peculiar interest in the wealthy and glamorous Parks for their livelihood until they get entangled in an unexpected incident.

Martial law is declared when a mysterious viral outbreak pushes Korea into a state of emergency. Those on an express train to Busan, a city that has successfully fended off…