Lightning Bryce is a 1919-1920 American Western film serial directed by Paul Hurst and starring Ann Little and Jack Hoxie (his first starring role). 15 episodes were produced; all episodes survive today.

Plot
Two prospectors, one the father of Skye “Lightning” Bryce and the other the father of Kate Arnold, find a large gold deposit belonging to an Indian tribe. They head for home but each sends a note to their respective off-springs advising them of their good fortune. One of the fathers conceives a plan of taking a dagger and wrapping a piece of string around the blade, after which he prints on the string with a lead pencil, the exact location of their find. If something happens to them, the string goes to the son and the knife to the daughter. That night an Indian approaches their camp and blows some mysterious wolf powder which causes a man to see wolves in place of human beings. Lightning’s father see his partner as a wolf and stabs him to death; later he is brought into town in a dying condition but before dying, hands the knife and the string over to the sheriff with instructions to deliver to Lightning and Kate. The sheriff also informs Kate that Lightning’s father killed her father, and she immediately turns against Lightning. “Powder” Solvang also knows the story behind the knife and the string, and is determined to gain possession of both, even to the extent of making Kate his prisoner in an opium den in Chinatown.

Cast
Ann Little as Kate Arnold
Jack Hoxie as Sky “Lightning” Bryce
Paul Hurst as Powder Solvang
Jill Woodward as the Mystery Woman
Steve Clemente as Zambleau
Scout as Lightning’s horse
Yakima Canutt as the Deputy (episode 15)
George Champion as a henchman
Ben Corbett as a henchman
Edna Holland as Daisy Bliss
George Hunter as a henchman
Noble Johnson as Dopey Sam’s henchman / Arnold’s butler
Slim Lucas as a henchman
Augustina López as Mother Lopez
Walter Patterson as a henchman