When the story begins, you learn that Salty (Alan Ladd) is in a fix. His partner absconded with $20,000 and the man that loaned Salty and his partner wants his money...or he'll make Salty pay one way or another! So, the fast-thinking gambler Salty hatches a plan. He knows of an incredibly fast race horse that is bound to be a big winner...but it's also supposedly unrideable. But Salty knows of a disgraces jockey who would control the beast...and so he buys the horse and plans on giving Johnny (Stanley Clements) a fake birth certificate and having him pose as a much younger jockey without a past! But an unforeseen problem arises when the birth certificate says the 22 year-old jockey is 17....and the racing officials won't let Johnny ride unless he enrolls in school!
The schooling offers some major problems....the biggest of which is Johnny is a larcenous jerk. Keeping him in school is practically full-time work for Salty, as Johnny seems to do his best to do his worst. In addition, Johnny is smitten with his school teacher (Gail Russell) and wants Salty to help him win the girl...no doubt a problem because she thinks he's only 17! But Johnny is a dope and he doesn't seem to understand that no woman would want a lunkhead like him. He's uncouth and tough to love....plus how will he explain the truth to her?! Plus, she seems much more interested in Salty than his hot-headed protege. And what about the $20,000...and the thug who seems more than ready to wrap Salty's legs around his head like a pretzel!?
So is this worth seeing? Yes....though I should point out that the story is pretty hard to believe. It's a 'turn off your brain and enjoy' sort of film....a lot of fun and well acted but very lightweight when it comes to the story and the finale.
By the way, based on performances like Clements had in this film, it's certainly understandable why he would be picked to replace Leo Gorcey in the Bowery Boys films when Gorcey quit the series in the late 1950s. In "Salty O'Rourke" he essentially plays a Leo Gorcey type character...though a much more larcenous one.