Domande frequenti

Thirty years after Britain successfully walled off Scotland to contain the spread of the Reaper virus, a particularly lethal virus that has infected millions, England is devastated to find that the virus has popped up again in London. Consequently, Major Eden Sinclair (Rhona Mitra) of the Department of Domestic Security is asked to lead a team of operatives into the quarantine zone to find medical researcher, Dr. Marcus Kane (Malcolm McDowell), who was last known to be working on a cure ...that is, if they can survive the survivors who have taken over Scotland.

Doomsday is based on a screenplay by British screenwriter Neil Marshall, who also directed the film.

Sinclair, Ben Stirling (Darren Morfitt), and Cally Kane (MyAnna Buring) are intercepted by a gunship carrying the new Prime Minster, Michael Canaris (David O'Hara). He asks for the cure, and Sinclair produces Cally, explaining that she is immune to the virus and that they can use her blood to make a vaccine. Canaris informs Sinclair that he has no intention of producing the cure just yet. He would rather withhold it until such time as the virus has killed off the infected as a form of population control. Canaris invites her to come back to London with him, but Sinclair chooses to remain in Scotland and look for her mother at the address written on the note. Sometime later, Nelson uses that address to fly into the quarantine zone and locate Sinclair. She tells him of Canaris' plan and gives him a recording she made with her artificial eye of their conversation, giving Nelson all the proof he needs to bring down Canaris. In the final scene, she returns to Glasgow where she tosses Sol's (Craig Conway) head to the punk cannibals, saying, "If you're hungry, try a piece of your friend." Realizing that Sinclair has defeated their leader, they begin cheering her as his replacement.

The film gives three possibilities: (1) She stayed to look for her mother, (2) she stayed because she knew the hot zone was free of the virus but that London would soon be raging with it, and (3) she stayed to build an army amongst the punks to protect her should Canaris come looking for her.

Crowd parties at Sol's show - "Dog Eat Dog" by Adam and The Ants.

Sol dances onstage with strippers - "Good Thing" by Fine Young Cannibals.

Sol dances onstage with men in kilts - "The Can Can" by Ariel Rechtshaid.

Talbot is brought out to the crowd - "Spellbound" by Siouxsie and the Banshees.

Sol's gang chases Sinclair, Stirling, and Cally on the road - "Two Tribes" by Frankie Goes to Hollywood.

End credits - "Club Foot" by Kasabian.

The film's theatrical cut was rated R by the Motion Picture Association of America (MPAA). Later, an unrated version was released on DVD and Blu-ray disc, adding more story to the film.