The Hardy boys, volunteers with the American soccer team, face extreme danger as they try to solve the crimes happening in the Parisian space-age stadium.
Frank and Joe go to the Pocono Mountains to investigate the mystery of a legendary witch who stalks Black Hollow seeking vengeance. Disappearances occur and strange screams fill the night.
Frank and Joe Hardy search for clues to solve the mystery of the Beast-o-matic, which crazy inventor Mike Mendez has apparently used to turn their friend Chuck into a dog.