A crew is filming a commercial at Lost Lake. The commercial stars Prince Hamlet of Kronenberg von Auschwile III, a rather large and imposing but valuable dog. Mr. Morton, the film crew director, needs Steve to fly him immediately to make a connection to a flight to New York. Hamlet can't risk the flight in Steve's plane, so he has to stay at the Shady Rest under the care of Uncle Joe. With all the special treatment Uncle Joe and the girls give Hamlet, Dog feels like the forgotten family member. So, Dog runs off. Uncle Joe makes Hamlet track Dog's scent, but Hamlet gets away. Everyone comes to realization who is really the valuable dog, when Dog finds Hamlet.

Uncle Joe discovers that the 75th anniversary of the railroad between Hooterville & Pixley is approaching, and seeks to take control of the ceremony.