Engineer Bob Durland, a rival of the wealthy Harold Blake for the hand of Alice Randolph, goes to Mexico during its revolution to prevent Morgan Randolph from losing his oil concession. Harold accompanies him, but when the Mexican insurrectionists threaten the two Americans, he becomes frightened and leaves. Upon his return, he reports that while he himself heroically fought off the revolutionaries, Bob died a coward's death, and Alice, believing her true sweetheart to be dead, agrees to marry Harold. Meanwhile, Bob saves Randolph's mines despite several attempts on his life and then returns to the United States, just in time to prevent his girl from marrying the wrong man. After evening the score with Harold in a fight, Bob takes his place beside Alice at the altar.
—AFI