A global zombie outbreak destroys civilization. Molly is bitten and turns, yet her memory drives her back to her mother Beth. Beth cares for her, holding back her zombie urges. The townsfolk later let Molly guard their town, as other infected fear her. Doctor Claire finds Molly’s blood has virus antibodies. To stop Molly from being experimented on, Beth runs away with her, before taking shelter at a military research base on the condition they stay together. Research finds Beth’s voice and memories keep Molly’s humanity alive. When powerful evolved zombies attack the base, Beth, Molly and Toby fight through hordes to deliver the antibody serum. Molly regains her sanity, and they return to town, bringing hope for a cure and coexistence.
