Artemis Fowl is a 12-year-old genius and descendant of a long line of criminal masterminds. He soon finds himself in an epic battle against a race of powerful underground fairies who may be behind his father's disappearance.

Detective Sherlock Holmes and Dr. John Watson join forces to investigate a murder at Buckingham Palace. They soon learn that they have only four days to solve the case, or the queen will become the next victim.