Buck Peters arranges for Hoppy, California, Johnny and other cowboys to go to the aid of friends whose cattle are being rustled. Hoppy and California locate the rustlers' hideout and join the gang by posing as outlaws themselves, but must find a way to let the rest of the posse know where they are.
as Hopalong Cassidy
as California Carlson
as Nevada Teale
as Johnny Nelson
as June Winters
as Jud Winters
as Henchman Gila
as Henchman Carp
as Singing Cowboy Pete (lead guitar)
as Singing Cowboy Skinny (2d guitar)
as Singing Cowboy-Mandolin Player
as Ranch Foreman Waffles
as Long Ben, gambler-saloon owner
as Henchman Layton
as Henchman "Elbows"
as Henchman Duby
as Henchman Concho
as Chinese Charlie, gang cook
as Long Ben's Bartender
as Buck Peters
as Cowboy Tex
as Cowboy Red
as Rancher Frenchy
as Henchman Ed
as Henchman
as Henchman
as Henchman
as Henchman
as Hefty Barfly, drinking with Long Ben
as Thin Barfly, drinking with Long Ben
as Townsman
as Lanky Smith
