After having been framed by gamblers, Muggs is barred from riding in horse races. Snce he can no longer race, he takes up a collection so Ma Brown, who owns the horses won't have her stable foreclosed on. However, one of the gamblers involved in the frame falls for Ma Brwn's daughter, and decides to come clean and confess to the police about the frame. The other gamblers hear about it and set out to shut him up and discredit Muggs and Ma Brown once and for all.
| Actor | Role |
|---|---|
 Leo GorceyMuggs McGinnis | Muggs McGinnis |
 Huntz HallGlimpy | Glimpy |
 William BenedictSkinny | Skinny |
 Johnny DuncanSqueegie Robinson | Squeegie Robinson |
| BBuddy GormanBud Gorman | Bud Gorman |
| MMende KoenigSam | Sam |
 Minerva UrecalNora Brown | Nora Brown |
| NNancy BrinckmanElsie Brown | Elsie Brown |
| BBernard ThomasGaby O'Neill | Gaby O'Neill |
 George MeekerDollar Davis | Dollar Davis |
| JJohn Henry AllenScruno | Scruno |
 Pierre WatkinDr. Fletcher | Dr. Fletcher |
 Milton KibbeeVeterinarian | Veterinarian |
 Frank JaquetSteward Farnsworth | Steward Farnsworth |
 Bernard GorceyMeyer | Meyer |
 I. Stanford JolleyMike Hanlin | Mike Hanlin |
| MMichael OwenJoe English | Joe English |
 Betty SinclairNurse | Nurse |
 Forrest TaylorMike | Mike |