S2·E51 RiffRaffville, Part 3

Underdog sets out to find Sweet Polly. He looks on a train, in a bank and at a cattle ranch. At the train and bank, his energy is drained by bombs set by Riff's gang. At the ranch, he's run over by the cattle. A cowboy tells Underdog where Polly is, so he flies to Riffraffville with the last of his strength.