All six episodes of the ITV fantasy drama series starring Philip Glenister as Rupert Galvin, who comes to Britain from America to inform his dead friend's teenage son Luke Rutherford (Christian Cooke) that he is actually the great-grandson of Abraham Van Helsing, the vampire hunter in Bram Stoker's 'Dracula'. Rupert then helps Luke to fight the vampires and other supernatural entities - led by 'Half-Life' Gladiolus Thrip (Mackenzie Crook) - that are out to destroy him.