Outlaws Slim Stevens and Hutch Dalton are amazed to see gold nuggets fall out of Cannonball’s pockets one day in the frontier town of Crestview. They force Cannonball to reveal the location of a gold mine he has discovered. Slim, Hutch and their gang members make a beeline for the location, and trespass on the ranch of Big Bill Bailey in doing so. Bailey and his foreman Bob Wilson put up a fight but are losing when sheriff Lucky Crandall arrives and helps drive off the outlaws, but not before one of Bailey’s men has been killed. Madge Duncan, Slim’s sister, learns of the killing and refuses to let her brother hide in her home. The gang plans an ambush for Lucky, but Lucky has some plans of his own involving a counter-ambush.