Muggsy Mulane, a waif who wears boy's clothing, jumps a freight train to the country after Jimmy "the Eel," the leader of the gang of crooks with whom she works, is arrested. In the village of Cottonville, Muggsy befriends Aunt Sarah, whom she later discovers is Jimmy's mother. When Muggsy learns that the greedy Judge Cotton, who holds the mortgage on Aunt Sarah's property, is planning to foreclose, she threatens to blackmail him, and he relents. Next, Muggsy sells a part of Aunt Sarah's property for far more than it is worth, and finally convinces Jimmy to come home to his mother and live the straight life.