Reason 4 Life 4

The installment starts off with a new group of survivors who have docked their boat near the a safe house, they are unaware of the infection and seem to be friends. The experience changes once they enter the safe house, finding a dead body, radio, and a tinpot. However, these friends become aware as they see two shambling infected outside, so there go out in the swampy area and use tin pots to kill one of them. A helicopter crashes, revealing a pilot Jackson who was saving survivors dying of blood loss, but before his passing he informs them about a rescue center West of their location. Jackson dies and the group kill the last remaining zombie, but after an easy battle they must find dynamite to explode a fence blocking their way. After a successful attempt, the team move towards a camp but before they do zombies and four-legged running zombies charge at them. Once the swarm is killed, they find a shack with a pistol inside and use it. When at the camp, they are swarmed by a couple of zombies and a boomer. When the swarm is wiped out, the team once again find dynamite to explode a fence blocking their way inside a cave. Inside the cave, a man with a wrench and a dead body claiming that the dead body was his friend who got hurt and turned into a zombie, leading to his tragic and horrific death. The friends go deeper inside the cavern where they find a M4A1, a writing saying 'MALL R', and a tunnel leading to a big cave area. To their surprise, their entrance is blocked by rocks and boulders and a huge swarm is triggered due to the loud noise. Once the swarm is killed, a giant zombie known as the Mall R attempts to kill the friends. It takes numerous shots to kill the beast, but however they are successful. The area begins to flood with water, so they use the flood to reach them to a hole leading to a sewage. The lucky friends find a crate filled with random items, and head down deeper into the sewer. A charger and a swarm come from behind, but get wiped out. The gang finds themselves in a large sewage area with two pipes, a stand with another crate, and a herd of zombies occur lasting a fight that carries on for minutes. After the last remaining zombies are killed, they use a tunnel to make their way out via ladder. The team finds themselves in a neighbor hood, and use the houses to find supplies. A swarm appears out of no where with a boomer and jockey, attempting to kill the team. The swarm is killed off, and then a plane crashes down the corner of the street revealing the 'original' group and Stan. After communicating with each other and thinking of plans to find the rescue center, they use a truck to get there. The road somehow fills up with acid and zombies begin appearing out of the shadows.