By the year 1974, robots have replaced humans in the boxing ring. Travelling from one tank-town to another, fight manager Steel Kelly (Lee Marvin) hopes to squeeze one last bout out of his robot client Battling Maxo. Unable to pay for repairs when Maxo malfunctions, Steel grimly determines to win the prize money by taking the robot's place in the ring. Scripted by Richard Matheson from his own short story, "Steel" made its Twilight Zone network bow on October 4, 1963.
by Hal Erickson synopsis