1862. Commodore Sir Francis and inventor Douglas initiated on behalf of the Royal Society of London Geography of a balloon ride under the command of Dr. Ferguson, who plans to cross Africa from east to west. But to accomplish this feat will have to overcome numerous adventures in which their lives are at serious risk.

All kinds of crimes are being committed in a frontier settlement; if you blame it on the Chiricahuas afterwards, you can get away with anything. One Chiricahua hooks up with a white guy and a black woman who have been victimized by the status quo, and the three of them whoop some righteous-vengeance butt.