In Old Colorado

Joe Weller has instigated a conflict over water rights between two ranchers. The idea is to have the ranchers do each other in then move in and take over. Hoppy and the good guys won't let this happen.

• Howard BrethertonDirector
• J. Benton CheneyWriter
• Russell HaydenWriter
• Norton S. ParkerWriter

• William BoydHopalong Cassidy
• Andy ClydeCalifornia Carlson
• Russell HaydenLucky Jenkins
• Margaret HayesMyra Woods
• Sarah PaddenMa Harriet Woods
• Stanley AndrewsGeorge Davidson
• Morris AnkrumWeiler, Davidson's Foreman
• Cliff NazarroNosey Haskins
• James SeayWoods Cowboy Hank
• Weldon HeyburnLead Henchman
• Eddy WallerWoods Cowboy Jim Stark
• Morgan WallaceSheriff Collins