Jill becomes the star of a roller derby team when she goes undercover to investigate the mysterious death of skating champ Karen Jason, who is killed after being forced over the guardrail and into the audience during a rough and tumble race. The client believes Karen was murdered, despite the police report stating that the death was accidental. In search of clues, Sabrina poses as a state insurance investigator, Kelly as a pushy writer for a national magazine, and Jill romances the team owner.