When the showboat hits town, two men use the parade as a distraction to rob the bank. Their accomplice is Pop, the clown from the showboat. He leaves the money on the boat and tells his daughter Patsy to bring it to him at a later stop on the river. Gene's investigation of a bank robbery takes him to the showboat where he becomes a performer. Gene and Frog try to find the money while helping Patsy and her father.

A country bumpkin becomes a singing sensation on the radio.

George Sanders makes his final appearance as crook-turned-detective Simon Templar, a.k.a. "The Saint," in The Saint in Palm Springs. The gimmick in this one is a set of rare stamps, smuggled from England. Wendy Barrie is the true heir to this treasure, and the Saint is engaged to protect her and the stamps. Our hero meets Barrie in a posh Palm Springs resort, where a gang of homicidal thieves have converged to relieve the girl of her inheritance. Three murders and one kidnapping attempt later, the villains are foiled by the Saint, with the aid of his onetime partner in crime Pearly Gates (Paul Guilfoyle). The Saint in Palm Springs is the sixth in RKO's series of films based on the character created by Leslie Charteris.