Fifteen years after rescuing Lita from an evil demon and bringing her back from the Dreamscape, Jack is now living in an isolated cottage on the moors with her and their son, Daniel. When Grandpa Ulysses turns up one morning their idyllic lifestyle is shattered and they are all dragged back into the fight against The Fallen. Someone is shutting down the Dreamworlds one-by-one and they must find out who is responsible and stop them before they destroy the whole of the Dreamscape. Lost on the moors in thick fog they are pulled back to the village of High Whyncross where they must face the greatest danger of their lives, one of The Fallen who has lived on the surface long enough to become more powerful than any of its kind before. It is preparing the way for the coming of The Herd and if it succeeds, it could be the end of the human race. Can Jack, Dan and his new girlfriend, Polly stop it in time and save their species from eternal slavery?