Nina, Mitchell and George move into a former hotel in Wales with a basement suitable for the werewolves' transformations. Annie appears on a TV screen and Mitchell follows a recently deceased man in the hospital where they are working through a portal to Purgatory to save her. He meets sparky ghost Lia, who confronts him with some of his previous grisly handiwork and identifies herself as one of his train victims but allows him to take Annie back into the world. George pursues Tom, another young werewolf, but gets arrested after landing in a 'dogging' area though Nina gets him out of the cells before the full moon rises. Next day Tom rescues his father, 'Mad Dog' McNair, another werewolf, who has wreaked a bloody revenge on the people who abducted him to become a cage-fighter.