PJ and Maggie are called to the U Wreck panel repair works where the foreman, Jeff Dimmock, lies injured outside—a victim of a hit-run driver. Dimmock is a feared bully with any number of enemies who must be regarded as suspects. But Dimmock himself believes the culprit to be Molly Beggs, one of two apprentices whose lives at work have been marred by the culture of torment and vicious practical jokes. While PJ and Maggie begin their investigations, another mystery surrounds one of the Heelers themselves. Adam Cooper is missing. The pressures mounting recently in Adam's married life as well as a disaster in his career give Tom Croydon and Nick Schultz some unease about whether he may have suicided. Dash McKinley does not believe Adam would suicide over the misbehaviour of his wife, Stacey. From Slender clues, Dash uses her detailed knowledge of the Mt. Thomas landscape to work out where Adam may have gone. She and Nick discover Adam in the bush, lying near death with a bullet in his che