Slip (Leo Gorcey), Sach (Huntz Hall), Chuck (David Gorcey as David Condon), Butch (Bennie Bartlett) and Whitey (Billy Benedict) suddenly become the Mahoney Collection Agency when they learn that Flynn (Tim Ryan), stable and second-hand store owner, has owed $250 to Louie (Bernard Gorcey), Sweet Shop proprietor, for over two years.
Flynn, who has a daughter named Terry (Gloria Saunders) persuades Slip to accept "My Girl," a horse, in payment for the debt. Flynn has been boarding the horse for months but has not been paid. "My Girl" is a really good race horse that is actually owned by racketeer Big Al (Ted de Corsia), who with Weepin' Willie (Allen Jenkins) and Swifty (Michael Ross), are planning to run the horse in a future race as a ringer for their long-odds and very-slow horse, Tarzana. The Bowery boys learn of this and switch horses. Big Al, Willie and Swifty swath back. This goes on until finally the Boys have "My Girl,", the good horse and Big Al and company have Tarzan, the nag, but think they have "My Girl." Tim Ryan could write one like this in his sleep, as could most of the fans of the series from this point on...beginning with...let's make a jockey out of Sach.
