In Prohibition-era Southern California, real-life detectives Charles A. Siringo and Dashiell Hammett must solve a mystery involving a ruthless politician - Joseph P. Kennedy. With sharp dialogue and a rich historical background, Ragtime Cowboys is an exciting, suspenseful tale of bribery, blackmail, and murder.

Los Angeles, 1921: Ex-Pinkerton agent Charlie Siringo is living in quiet retirement when Wyatt Earp knocks on his door and asks him to track down Earp's missing horse. What begins as horse thievery turns into a deeper mystery as Siringo and another ex-Pinkerton, the young Dashiell Hammett, follow clues that take them from the streets of Los Angeles to Jack London's farm. There they discover a conspiracy masterminded by the notorious and powerful Joseph P. Kennedy.

From beginning to end, these ragtime cowboys chase the truth in this compelling tale where the Old West and early Hollywood collide.