Slicing through the morn

Virus, that turns people into zombies, spreads like wildfire. Luckily they isolated it in South Korea and the peninsula has been quarantined for four years. Some people want to go to the zombie-infested place because all its money and gold just lie there unguarded. For instance a team of four to retrieve a truckful of cash and only to witness that in four years South Korea has rotten to pieces and the zombies are still alive, well and aplenty. Peninsula is a follow-up to Train to Busan, but not quite wicked as its predecessor.