"The exciting adventures of Betty Boop's dog, Pudgy, who insists on following his mistress when she goes downtown in the subway. He gets on the train, and then his troubles begin. After almost disrupting the train service, he is flung off, and is forced to walk the tracks back to the station, with trains whizzing down on him from all directions. When he finally arrives safely back home, he is cured of wanting to trail around town with Betty."