When sixteen-year-old Sam Rayner moves abroad with his family, he is forced to leave behind everyone and everything he holds dear. As he struggles to settle in his new surroundings, Sam thinks his situation cannot get any worse, however a shocking terrorist attack turns his world on its head. After suffering a traumatic brain injury, he wakes up in hospital to discover that he has developed seizures during which he slips into the body of a past or future self. Can Sam and his friends somehow defeat the sinister forces that want to use his powers for their own ends? Can they manage to save Sam's family from violent deaths that are already in the past - and, maybe also, win the girl he loves - by turning back the pages of time?