The Weapon is a loose grouping of elements first seen in the 1951 British melodrama The Yellow Balloon. Jon Whitely plays a young London boy who finds a loaded gun in a blitzed-out building. He fires, accidentally shooting a playmate. Believing he's killed his friend, the boy runs away--leading to a relentlessly suspenseful climax. Though filmed in England, The Weapon was geared from the start for primarily American audiences; its producer was Hollywood's own Hal E. Chester, and its adult stars included Steve Cochran and Lizabeth Scott. The script was written by Fred Freiberger, best known to sci-fi followers as the producer of the original Star Trek's third and final season.