Although a mouse detective visiting from the city claims that he will help the farm animals find a missing locket, it is Jonathan Mouse who solves the mystery
The farm where Jonathan Mouse lives has suddenly become a very unhappy place. The farmer's wife's golden locket is missing, and she's sure that someone has stolen it. One by one the animals come under suspicion, but none of them, it seems, is the thief. It's up to Jonathan to solve the mystery. A hilarious whodunit filled with warmth and good fellowship. Full color.