Acid rain devastates a village, causing horrific skin burns and triggering a zombie outbreak. Evan, a stubborn villager, blocks the protagonist's RV with his tractor, unaware the acid rain has eaten through the tractor's roof. As Evan is exposed, his clothes dissolve and sores appear, forcing him to drop to the ground in agony. Just when it seems he has died, Evan suddenly reanimates as a zombie and attacks the RV, smashing its window. The protagonist watches helplessly as the first zombie emerges, marking the start of a dire crisis that threatens food supplies and safety.