Sgt. Rusty Curtis of the U.S. Cavalry is unhappy about the Army's plan to replace horses with tanks so, after a medical discharge, he tries to buy his old military mount Sireson. Unfortunately, the father of wealthy socialite Sally Crandall outbids him with plans to train Sireson for a steeplechase race. Sally and Rusty develop a rivalry because she has a favorite horse of her own, but when her horse is hurt she and Rusty declare a truce and begin a romantic relationship.
Unfortunately the movie Thoroughbreds is not yet available on HBO Max.
| Directing | George Blair | Director |
| Writing | Wellyn Totman | Writer |
| Crew | Franklin Coen | Additional Dialogue |
| Production | Lester Sharpe | Associate Producer |
| Crew | William Bradford | Cinematography |
| Sound | Richard Cherwin | Music Director |
