After being foiled by Underdog one too many times, Riff Raff is reduced to a laughing stock within the underworld. Riff Raff hears of a gold shipment that Underdog is delivering to Fort Knox. One of Riff Raff's henchmen concocts a plan to capture Polly and place her tied up in a free flying balloon in the midst of many other balloons- all playing a recording of Polly's voice. The plan? To distract our hero and steal the gold.