As described in a film magazine review, the film takes place during the American troop maneuvers along the border during the Mexican Revolution. Justina Howland (Pennington) lives with Miguel Alvarez (Fraunholtz), her Mexican guardian, who insists that she marry his son Luis (Burton). On the eve of the wedding Justina rebels and leaves, and at the border is taken in by Thomas Morton (Moore) and his company of Massachusetts soldiers. Justina goes to live with her aunt Elizabeth (Harris) and, shortly after her arrival there, the troops from the border return and Justina renews her acquaintance with Thomas. In order to save herself from her Mexican uncle, who has pursued her, she marries Thomas.