 Tim Mason has run up a gambling debt and is unable to pay. When he becomes a Ranger, Banker Crandall forces him to let his gang smuggle guns across the border. When he is jailed for being away from his post, Crandall has him killed to keep him from talking. Being suspected of aiding Mason, Hoppy is kicked out of the Rangers. But it s a plot between Hoppy and the Captain so Hoppy can join the gang.