Stories of a frontier physician in the pioneer town of Rising Springs, Arizona Territory.. The series depicts the action-packed adventures of Bill Baxter, a young doctor who braves outlaws, indians and the raw elements in pursuit of his humanitarian profession. Rex Allen, the courageous medico of frontier days, has full opportunity to display his riding and fighting ability. Although he travels unarmed, he often encounters gun-slingers who force Rex to fight his way out of light corners.