A riding stables owned by Helen Davison is vandalised. Vincent Batten, who owns most of the horses in the stables, wants CBS to provide security cover to satisfy his insurance company. Then Sultan, one of Vincent's stud stallions, is stolen while Rocky is watching the stables. CBS are made to look like amateurs. Harry offers to do a free security survey of Vincent's house by way of recompense and volunteers Ken's services to investigate the vandalism and the theft of the horse. While Harry is doing the survey, he sees Jordan, Vincent's business manager, loading up the Land Rover with water and horse feed. Harry and Laura follow Jordan to a derelict cottage where is secretly meeting Vincent's wife, Greta: they are having an affair and Greta knows that Vincent would divorce her if he ever found out. Ken is suspicious of Meia, one of the stable girls who lives with a group of gipsies nearby. Bull, Meia's father and leader of the travellers, resents the fact that whenever any crime is comm