Buster, an eight-month old cocker spaniel puppy, is just learning the dos and don'ts of puppyhood. He's learning to do what is right and what is wrong. Buster knows what the rules are; but one day, while investigating his surroundings, he hears a voice crying out for help. His heart says to go help, but his head says to stay in the yard. Will Buster follow his heart, or will he follow the rules?