The zombie virus sweeps the world while pregnant women give birth to zombie babies.

Ana woke up to find her daughter turned into a walker and her husband bitten. She then fled in her car, but was involved in a car accident. When she wakes up, she meets a policeman-Kenneth and several survivors. Together they take refuge in a Wal-Mart supermarket. But it wasn't a permanent refuge. One day while rescuing the owner of the gun store across the street, they accidentally lured walkers into the shopping center. How will they survive?