[Machine Translation] A mysterious bomber is targeting the world's largest roller coaster! The "Airport" series and the "Columbo" crew have teamed up to bring this panic-suspense blockbuster to Blu-ray for the first time with the Japanese dubbed TV version included for the first time! --A small bomb explodes on a crowded roller coaster at Ocean View Amusement Park on a busy night. A cart derails, resulting in numerous casualties. Harry ( G. Segal ), an investigator for the Security Council in charge of inspecting the park's rides, goes to the scene, but this time a blizzard breaks out at an amusement park in Pittsburgh. Harry goes to a meeting of amusement park owners in Chicago, where a mysterious blackmailer who sends out a series of bomb threats appoints him to deliver a million dollars.