Sergeant Preston and Corporal Henry stop by at the home of Pete and Molly and their young daughter Jane introduces Sergeant Preston and his lead dog King to her new puppy “Frisky” which is a little fat as Jane has over fed him. Sergeant Preston and Corporal Henry are on the trail of a killer who robbed a bank in Dawson and killed two men. They find him but he has hidden the gold and his supplies. Meanwhile greedy little Frisky has gone missing and his hungry nose gets him in a tricky situation.