Overland Mail is a 1942 Universal movie serial starring Lon Chaney Jr., Noah Beery Jr. and Noah Beery Sr. which was subsequently edited into a film version called The Indian Raiders in 1956.

Plot
Two investigators for a stagecoach company are assigned to discover why the company’s stages keep being ambushed. They find that the culprits are bandits disguised as Indians, and they set out to find out who is behind the plot.

Cast
Lon Chaney Jr. as Jim Lane
Helen Parrish as Barbara Gilbert
Noah Beery Jr. as Sierra Pete
Don Terry as Buckskin Billy Burke
Bob Baker as Bill Cody
Noah Beery Sr. as Frank Chadwick
Tom Chatterton as Tom Gilbert
Charles Stevens as Puma
Robert Barron as Charles Darson
Harry Cording as Sam Gregg, Henchman
Marguerite De La Motte as Rose, the Waitress
Ben Taggart as Lamont
Jack Rockwell as Slade, hired gun
Riley Hill as Mack, phoney Indian
Carleton Young as Lem, phoney Indian Adolf Hitler