Shaun's life is stuck in a rut. He's a twenty nine year old who lives with his two best friends Ed and Pete. Shaun's girlfriend Liz is sick of the same old, boring nights down their local pub. So when Shaun breaks his promise to organize a special anniversary meal for them both, Liz decides to break it off with him. Drowning his sorrows the following day, Shaun devises a plan to win Liz back, but today, all is not as it seems... Unfortunately for Shaun 'the dead' have risen in London and soon a full Zombie apocalypse has exploded onto the streets. Determined to save his girlfriend and salvage their relationship, Shaun and his pals let nothing stand in their way as they go forth on a zombie killing spree to save the day!