The title
Doomsday is not very imaginative and neither is this film. It starts off as a dystopian future where a virus has surfaced in Glasgow, making sure Scotland is cut off from the rest of the UK. Then, a cure is found and a team is sent out, after which the film devolves into a poor man's Mad Max where the baddies speak with a Scottish accent. Which is mibbe jist a wee bit silly.
So there is a lot to be said and desired. But it has a badass heroin, some okay action beats, an appearance by Malcolm McDowell, and - since it's a Britsh film - a fairly decent soundtrack.