The band kids who make up the Detective Band solved one mystery at their school and now a thief is causing an uproar. The thief has taken electronic items, jewelry and even a band instrument. When a member of the Detective Band is accused, Jennifer and the others know they have to act to solve this mystery. In the meantime, they also must come up with some talent to display in a school talent show. Will they catch the thief before one of them is suspended? Will anyone else be accused of the thefts?