Five friends who reunite in an attempt to top their epic pub crawl from 20 years earlier unwittingly become humankind's only hope for survival.
Simon Pegg
Gary King
Nick Frost
Andrew Knightley
Paddy Considine
Steven Prince
Martin Freeman
Oliver Chamberlain
Eddie Marsan
Peter Page
Rosamund Pike
Sam Chamberlain
David Bradley
Basil
Pierce Brosnan
Guy Shepherd
