Steve Frazer, a young cowpuncher on the Bar X Ranch, loved Madie, the winsome daughter of Chet Howard, the sheriff, and she was not indifferent to the manly cowboy. Loverlike, they had a post office in the mountains, among the rocks, and many little notes were exchanged between the happy pair. The mountains sheltered a pair of holdup men, who had long terrorized the country, and the cattlemen after a conference, decided to offer a reward for the capture, dead or a live, of the mysterious bandits. The notices were posted by the sheriff, but the depredations of the bandits continued, and one morning a ranchman, going home with a large amount of money, the payroll for his employees, was held up and robbed by one of the pair. The bandit escaped into the shelter of the mountain and by a strange coincidence cached the bag of gold in the lover’s post office. Shortly after Steve Frazer rode up to get his accustomed note and found instead the bag of gold. Leaving the note and taking the gold, he hurries to the sheriff’s home to report his discovery. A posse is formed and they start immediately for the scene of the holdup. In the meantime the bandit who committed the daring crime has sent his confederate, with minute instructions, to procure the gold cached in the lover’s post office. He finds the place, but instead of the desired gold he finds a note: “If you love me as I love you, No knife can cut our love in two.” Believing that his partner has duped him, he returns to the rendezvous and accuses him of double crossing him. This is denied emphatically, and together they return to the rock, but only find the note. Both are now thoroughly angry, and accusations against each other are fast and furious. “When thieves fall out, honest men get their dues,” and forgetting where they are, start to fight. They are thus engaged when the posse come upon them and they are easily captured. The reward offered for their capture goes to Steve Frazer and he is now in a position to claim the winsome Madie Howard, and the culmination is a happy one.