In the spring of 1880, Steve Dancy travels to Prescott, Arizona to gain control of a remarkable invention. But on his first night in the territorial capital, his friend, Jeff Sharp is arrested for a midnight murder at Thumb Butte. Dancy launches a personal investigation to find the real murderer, only to discover the whole town wanted the victim dead. For help, he turns to another old friend and associate, Captain Joseph McAllen of the Pinkerton National Detective Agency.
 
Can Dancy discover the true killer before his friend stretches a rope on the courthouse square?