After a high school track runner, named Laura, suddenly dies from a heart attack after finishing a 30-second 200-meter race, a killer wearing a sweat suit and a fencing mask begins killing off her friends on the school track team one by one. The suspects include the track coach Michaels, Laura's sister Anne who arrives in town for the funeral, the creepy school principal Mr. Guglione, and Laura's strange boyfriend Kevin.

Set 15 years in the future in post-earthquake California, where San Diego and Los Angeles are merged into one city, two teenage brothers have half of a powerful ancient Chinese talisman. Millionaire Koga Shuko (a.k.a. Guisman) has the other half and determines to get the brothers' half in order to have the complete medallion and the absolute power of the magical Double Dragon talisman.