Maggie's boyfriend is suspected of being on the take when a horse racing ring-in is discovered. Maggie's hopes of being promoted into the detective ranks is derailed by the appearance of a rival from St Davids. With Dale Stevens as Rose Egan, Richard Huggett as Sean Neale, David Glazebrook as Peter Grantham, Brian Hannan as Joe Lucas; Mike Bishop as Charles Fenwick, Esme Melville as Mrs. Keane, Kevin Summers as Greg Walters, Russell Fletcher as Davis, Robert Morgan as Johnson, Greg Fleet as Miller, Jonathan Isgar as Carter.