Falcon MacCallister's father, Jamie Ian, was a legend in the West, but Falcon's quest for justice has driven him onto what many consider the wild side of the law.

Famed as a gunslinger, feared for his lethal speed and accuracy, Falcon decides to make it a fair fight when he comes upon a man being attacked by a bandit gang in the Dakota Territory. The man is Teddy Roosevelt, the original Rough Rider himself.

Soon Falcon and Teddy are entangled in a web of robbery, kidnapping and murder that will lead to Falcon's trial on manslaughter charges.