Tabitha is thrilled to be attending a summer forensics camp, even if she has to go with her sort-of friend Mason. Soon she is learning to dust for fingerprints, photograph a crime scene and take footprint impressions. Even though the camp instructors have set up a "crime" for the kids to solve, Tabitha longs to use her newfound skills to solve a real-life mystery. She's pretty sure a dognapping ring is active in her Montreal neighborhood, and when her beloved dog, Roxie, is stolen, she convinces her forensics "team" to help her find Roxie and nab the 'nappers.