When Claire Hanover saddles up for the opening event of her brother Charley's new riding stable, the last thing she expects is a murder investigation. Kyle Mendoza, one of the stable hands, is found dead in Gunpowder's stall. Everyone thinks the horse trampled him, until it's discovered someone killed Kyle before dragging him into the stall. Charley's troubles worsen with Kyle's family suing him and a rival stable owner wrangling up his clients, so Claire decides to find the real murderer before her brother's business is put out to pasture.