The cheery smile of big-hearted Ed Daton, a simple Westerner, causes a little girl to sense the thrill of happiness. Her desire for a greater measure of this, to her unknown joy, prompts her to steal away from her abusive parents and wander back to the little station known as "Lonesome." She is taken in by big Ed and the other noble herdsman and develops under the new environment to a bright and cheerful maiden. Out of gratitude, she guards the welfare of her benefactors and prompts them to nobler deeds of manhood.

The army engineer and his daughter are deeply interested in each other, but, of course, the will of the father predominates. As a result the girl experiences many heart aches, because it does seem as though she is about to lose her sweetheart because he is not an army man. The issue is brought to a climax by the presence of a spy in the father's home. Plans for the border fortifications are stolen and the impending disgrace and ruin drive the officer to the verge of despair, from which he is rescued by the daughter and her sweetheart, who rescue the plans, and apprehend the spy.

Ben Hart, the youthful mining expert, arrived at Red Rock and promptly sought out pretty Mabel Whitaker and her mother, who had inherited a map purporting to lead to a gold deposit. Ben made an appointment to look at the deposit and did so - quite unaware that Jim Halliday, with two bad pals, kept close watch of his every movement.

The pretty dancer and the casual cowboy visitor at the cabaret fell in love. A Mexican waiter loved Chiquita. A Gringo get this dainty bundle of Spanish nerves and beauty? Never! He planned to destroy the cowboy lover by a drop of poison in his cup.