At the height of the Cold War, the US Air Force pursued an aircraft that sounds like science fiction: a bomber powered by an onboard nuclear reactor, capable of staying airborne for months without refueling. The film traces the Convair WS-125 program from its Pentagon origins through the engineering problems that nearly doomed it from the start, chiefly how to shield a crew from a live reactor a few feet behind the cockpit without adding so much lead that the plane could never leave the ground. Archival footage and technical drawings lay out the reactor designs tested, the ground facilities built to run them, and the strategic thinking that made an aircraft able to loiter indefinitely seem worth billions to planners facing Soviet missiles. Interviews and narration walk through why the program eventually collapsed, overtaken by ICBMs and by the sheer difficulty of making atomic flight survivable for the men flying it. What remains is a case study in Cold War ambition outrunning what physics and radiation safety would actually allow.