A new group of evacuees arrive on Jeju Island, the zombie-free safe haven. They've never faced zombies before, but their luck is about to run out!

Dex, Si-young and the survivors regroup after a daring escape. Soon they hear about a rescue operation, but can they all board the rescue helicopter?

Back on the mainland, the survivors retreat to a club in a beach town and spot a familiar face — but how did he survive after becoming a zombie?

As their deadly game ends, survivors journey to Seoul with a potential cure, facing a dilemma: what choices will they make between zombies and humans?

Together with the chosen evacuees from the shelter, the group must find their way through the dark and zombie-infested tunnels to the subway platform.

After a teammate's betrayal, the group is trapped on a train to Seoul filled with waves of relentless zombies. Can they escape this nightmare?