While back on the trail of the Swill brothers, Brisco and Bowler rescue three mail-order brides making their way to Denver who had their dowries stolen by the Swills. The Swills' newest plan is to steal a bull sent from Madrid, Spain to Madrid, CA as a token of peace and hold it for ransom. After escaping from the Swills' mother Lil (who holds them responsible for the death of her son Gil, in No Man's Land), they manage to thwart the Swills in Madrid.