Return to the world of 1950s Torchwood!

Welcome to Ashenden. An exciting new town just outside London, and also the home of a terrible secret.

London has been infiltrated - a darkness is spreading from the bombsites to the highest ranks of government. A darkness that cannot be stopped. A desperate hunt is on for the man who caused it.

The past has come for Torchwood agent Norton Folgate. This is the hour of the hollow man.