Susanna Pass
1949The bad guys dynamite a fish hatchery. They're trying to put the hatchery out of business so they can get possession of oil underneath the lake. Roy is a game warden investigating the dynamiting.
Acted in
Roy Rogers
as Roy Rogers
Trigger
as Trigger - Roy's Horse
Dale Evans
as Kay 'Doc' Parker
Estelita Rodriguez
as Rita
Martín Garralaga
as Carlos
Robert Emmett Keane
as Martin Masters, Newspaper editor
Lucien Littlefield
as Russell Masters
Douglas Fowley
as Roberts aka Walter P. Johnson
David Sharpe
as Henchman Vince
Robert Bice
as Bob Oliver
Foy Willing
as Foy
Peter Brocco
Mauritz Hugo