Nathan Blaylock is a hard young man--toughened to rawhide by his mentor, an old gunslinger named Jim Riley, and his heritage: Blaylock is the illegitimate son of Wyatt Earp.
Blaylock and Riley had briefly worked for corrupt E.T.. Barnette, who was determined to open a trading post at Tanana Crossing, but never made it up the river. Barnette's tenacity now pays off with the nearby discovery of gold; his forlorn outpost becomes the bustling boomtown called Fairbanks. Overnight, Fairbanks is transformed from a mudhole with log cabins and canvas tents to a brick and stone city, including the imposing bank Barnette founds to safely horde all the gold he extracts from the miners as tribute.
When Nathan and Riley come up against the venal Barnette and oppose the Fairbanks kingpin, only Wyatt Earp and his pack of retired gunfighters can come to Blaylock's aid and rid the city of Barnette and his corrupt gang.