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?

Facing incredibly powerful zombies, the survivors are pushed to their limits. Will their efforts save humanity, or will their sacrifices be in vain?