After telepathic twins Jamie and Scott are attacked by the evil Nightrise Corporation, one of them is imprisoned while the other escapes, left to fight with the other three gatekeepers against the evil Old Ones in order to save his sibling and prevent the destruction of humanity.
Having locked the Raven's gate, fourteen-year-old Matt travels to Peru where he meets the second of the five gatekeepers and works with him to try to stop the opening of a second gate somehow related to the Nazca Lines.
Sent to live in a foster home in a remote Yorkshire village, Matt, a troubled fourteen-year-old English boy, uncovers an evil plot involving witchcraft and the site of an ancient stone circle.
