In the Old West, impressionable teenagers Will, Les, and Tod find an injured bank robber who asks for their help. At first, the boys are scared and reluctant to help, afraid of getting into trouble with the law and their parents. Moved by the wounded man's pleas, they finally agree to hide him in Will's barn and clean his wounds. Over the next few days, they bring food, drink, and clean clothes to the outlaw, whose name is Harry Spikes. When the sheriff and his posse come by and ask questions, Will hides the fact the robber is concealed in his family's barn. After he sufficiently recovers, Harry Spikes thanks the boys for their help and vows to help them in return if they ever need his aid. He takes Will's horse and leaves the county, heading for the Mexican border. Later, Will's parents discover their son's little mischievous secret and administer Will a severe beating to teach him to never lie. Fed up with his father's frequent physical punishments, Will runs away from home. He goes by Les and Tod's homes to bid them farewell. In a powerful thirst for adventure, Les and Tod also decide to leave home. The three teenagers ride on and vow to have fun without any parental restriction. However, after a few days without food or money, the boys decide to rob a bank. The bank robbery goes wrong and the boys are on the run toward the Mexican border. In Mexico they do menial jobs to sustain themselves, but trouble is never far away and they end up in a Mexican jail for breaking into a pawnshop. Languishing in jail, the boys lose hope, but Harry Spikes happens to be passing through town and he finds them and bails them out of jail. In the end, he offers them the chance to work with him. The boys agree to form a bank-robbing gang with Spikes as their leader.