The son of Yö Kotka, Pikku Haukka, aka Kit Willer, has grown up and trained to be a skillful wielder of a revolver and a knife.
Kit Carson receives a call for help in subduing Black Sam, a gang that is sabotaging the construction of the Arizona railroad. When Tex leaves his son to continue shooting practice and runs away, it doesn't take long before Little Hawk sneaks out of the navajo camp to follow his father on his adventures. He will have numerous opportunities to excel and even save Tex and Carson's skin from Black Sam's cloaked henchmen, Mexican bandit El Dorado, and Natan's Apaches.
A tough villain hunt leads the heroes after violent confrontations on the trail of villainous moneymen.