While Shaggy and Scooby are watching the news one night, a deceased ska band returns from the grave live, causing them to run away in terror. The band later hypnotizes partygoers at the local nightclub to dance to their music. The dancers are taken to the hospital, whereupon the gang is called to solve the mystery before they dance themselves to death. Meanwhile, since her accident with the herd, Scooby has been visiting Nova regularly in the hospital. Eventually, the band hypnotizes Fred and the girls, forcing Scooby and Shaggy to turn to the Hex Girls for help.