On eviction night, the Big Brother house is disrupted by a bizarre phenomenon: the dead are rising and attacking the living. As chaos erupts outside, the contestants remain oblivious to the disaster within the fan-proof and zombie-proof Big Brother house. It isn't until Kelly, the show's runner, enters the house and delivers a dire warning that the house-mates become aware of the apocalyptic situation. With limited contact with the outside world, the house-mates must venture out to gather supplies, all while evading the zombies.
As a Big Brother eviction night looms, Britain is in the grip of an apocalypt...