Bat's plan to journey to Cheyenne for a big poker game are disrupted when the cavalry escort for a vital load of gunpowder is wiped out and the only men available to drive the wagons to the supply starved Fort Stewart appear unreliable.

A villainous saloon keeper plots to take over Bat's bank by preventing the gold bars the bank needs to back its gold certificates from getting through and then provoking a run on the bank by its frightened depositors.