Roy is a government man sent to solve a novel crime problem: a woman flirts with unsuspecting ranchers in order to get information from them which she passes on to her cattle-rustling gang.
The Cattlemen's Association persuades cowboy Roy Rogers to investigate some cattle rustling. The rustling continues but Roy eventually finds the secret tunnel used by the rustlers and captures one of them. This identifies the Hardy ranch as the culprits but when Roy goes to the Hardy ranch to confront them, he soon finds himself alone in a gunfight against the entire gang.—Maurice VanAuken <mvanauken@a1access.net>