Vampire Barnabas Collins is inadvertently freed from his tomb and emerges into the very changed world of 1972. He returns to Collinwood Manor to find that his once-grand estate and family have fallen into ruin.

An MI5 officer's attempts to foil a possible terrorist plot are undermined by bureaucracy and moral dilemmas. Will he make the world a safer place or be complicit in making a tense situation even worse?