Matt, Maggie Blaisdell, her "stable" of call girls and a young boy who's the son of one of the women take refuge from Ben Rodman's gang in an old fort. Unfortunately, the fort has crumbled with age and Rodman and his gang are able to get inside and demand a fortune in gold dust Maggie is carrying for friends. Maggie also has a trunk full of fine hunting rifles and ammo, which she distributes among the group, and though the girls can't hit the broad side of a barn they can scare off any frontal assault. What they don't have is water - one of Maggie's girls turned traitor had drained their barrel before running off to join the gang. With time running desperately short, Matt (and the weather) contrive a scheme to force the outlaws to come headlong after the gold dust, hail of bullets or no.