Indians have taken lovely Ruth Bryson prisoner, but handsome Bob Benson, who has managed to locate the secret entrance to the memorial altar room, and attempts a rescue in the nick of time!
Texas Ranger Chuck Williams is the bashful sweetheart of the daughter, Ellen, of the captain of his Texas Rangers troop. He is working with the Mexican Rurales in an effort to stop a gang of gun runners. The gang-leader shows up, posing as an artist, and Ellen takes him in as a boarder to make Chuck jealous. But Chuck is wise to the boarder, who kidnaps Ellen and heads for the mountain hideout of his gang.
A lost film. As described in a film magazine Exhibitors Herald on March 16, 1918: "a forest ranger known only as Headin' South (Fairbanks) goes forth in search of Spanish Joe (Campeau), a Mexican responsible for most of the treachery and outlawry along the U.S.-Mexican boarder. Headin' South gains quite a reputation as he goes along and finally believes himself worthy of joining Joe's band. in a whirlwind finish in which Joe is captured, Headin' South meets one of Joe's near victims (MacDonald) and falls in love with her."