Reese's inventor friend Major John Cane is called upon to open a locked bank vault. Outlaw Ezekiel Fry sees him do it and tricks him into helping his gang rob the Porfirio Bank. Reese, Chad and Joe are sent to Porfirio to investigate the robbery. Realizing he's been deceived the Major refuses to help rob the Cattleman's Exchange until Fry and his gang kidnap Reese and threaten to harm him. Then Cane invents a precision plan that requires the outlaws to practice their parts in a barn. Chad and Joe follow a dog that has hung around them since they arrived in Porfirio, hoping it will lead them to Reese. Major Cane cuts Reese lose while the outlaws are practicing the robbery and the fight begins just as Chad, Joe and the dog arrive.

Captain Parmalee receives an invitation to the reading of Jake Ringo's will, a man he arrested who has been hanged. Parmalee will be the only law officer amongst a who's who of criminals that includes Linda Littletrees. Chad and Joe, who Linda has feelings for, are to accompany Parmalee but Chad convinces Erik that Linda is like Pocahontas and he takes Joe's place. The meeting place is the Halfway Mansion which has the America-Mexico Border line running right down the middle of the house. The will states that the money gets split evenly among everyone, as long as they are alive. Since this is a group that already hates each other Captain Parmalee, Chad and Eric have their hands full as they try to stay alive, arrest those they can and return the $75,000.