The end of the world is nigh as the bold comedy drama reaches its earth-shattering conclusion. With the comet about to strike, the race to the bunker is on.

Cast: Mathew Baynton, Max Brown, Karla Crome, Jenna Fischer, Joel Fry, Bronagh Gallagher, Anna Jones, Paterson Joseph, Fabian McCallum, Megan Mullally, Prasanna Puwanarajah, Pauline Quirke, Diana Rigg, Gaia Scodellaro, Kyle Soller