This serial, starring boxer Leslie King, is presumed lost.

A series of six boxing dramas, each a complete story in its own right. The episode titles are: #1: Intrusion; #2: Hit Hard; #3: Soft Muscles; #4: The Return; #5: The Surprise Fight; #6: The Jazz Fight.

In the gritty streets of Detroit, *The Jazz Fight* follows Benny "The Hammer" Leonard, a once-promising boxer whose career has been derailed by his own demons—alcoholism, anger, and a destructive past. After a brutal loss in the ring and a nearly fatal bar fight, Benny is pushed to the edge of self-destruction. But when he receives an offer for one last fight, his shot at redemption hangs in the balance.

Episode #5 in the Flying Fists series featuring real-life boxer Benny Leonard.

Talented boxer Benny Leonard suffers a series of personal and professional setbacks and must find the inner strength and physical discipline to return to the ring to reclaim his title and prove his worth to his skeptics and his love interest, Helen.

Third installment of the "Flying Fists" silent series with boxer Benny Leonard in the lead.

The second of six episodes in the "Flying Fists" boxing series sometimes listed as "Hit Hard" starring pugilist Benny Leonard.

Part of a series based on Sam Hellman's "Flying Fists" stories, featuring real-life boxing champ Benny Leonard as a flyweight boxer, where he'd fight for glory, training and battling rivals as a boxing hero in a sports comedy-drama style, showcasing his real-life prowess in two-reel shorts. This first episode is also known as "Intrusion"