Halloween is around the corner… Detectives Carpenter and Harding are used to bizarre cases, but this one might take the cake: sightings of scary clowns, murders, a gruesome find on the grounds of an abandoned amusement park. Did someone’s prank go horribly wrong, or is there something more sinister behind the incidents? While Jordan, Ellie and their friends work hard to solve the case so citizens can have a safe holiday, another case brings up difficult memories. Meanwhile, Kathryn needs help with a problem that might have far-reaching consequences for their family…