Gambler Monte Mallory cheats John Carson out of his ranch near the Mexican border and turns it into a notorious gambling resort, known as the White Owl. Carson is devastated by his loss and commits suicide. Later, Mallory turns his attention to Marion Moore, offering to forgive the $10,000 gambling debt owed by her brother, Donald, if she will be nice to him. However, Carson's son, Dave, is in love with Marion and comes to her aid. That night, Dave recovers Donald's debt marker and joins forces with the famed bandit, Quantrell, who also has a vendetta against Mallory. The gambler dispatches his henchman, Nick Alby, to kidnap Marion, but Dave and Quantrell follow them to the White Owl. Dave defeats Mallory in a brutal fight, then rescues Marion from a fire.
—AFI