The Gold Bricks, Part 4

Finally realizing that Riff Raff and Mooch are really the crooks behind the theft of the bank's gold, Underdog goes after the pair. No matter what they try, Riff Raff and Mooch can't stop Underdog. He cleans off the gold bricks and returns them to the banking officials and then turns Riff Raff and Mooch over to the law.