 Ronald Pitts wants to buy Tom Abbott s farm, but the old man does not want to sell. One morning his sheep have been let loose. Furthermore Kate Rowan suspects that there is brucellosis on his farm, because a young girl, Jane Shields, has caught the disease apparently by drinking unpasteurized milk from one of his cows. Greengrass is going to church. He has not become a holy man though, but he tries to get a reward for finding a lost heir and wants to look into the church records. PC Ventress still has not quite got the hang of driving. On a nightly patrol he parks his police car in the middle of a river trying to avoid a flock of sheep on the road. When he leaves the car to get help he hears an eerie scream.