Roy is an oil prospector. His efforts to get drilling rights on an old Spanish land grant are countered by gamblers from an off-shore gambling boat determined to control the land (and oil) themselves.

Roy Rogers
as Roy Rogers

Trigger
as Trigger

Dale Evans
as Billie Colby

Olin Howland
as Alkali

George Meeker
as Reed Calhoun

John Laurenz
as Henchman Pete

Russ Vincent
as Carlos Vega

Minerva Urecal
as Felicia

LeRoy Mason
as Henchman Hilliard

Donna Martell
as Rosa Vega