An episode of the Cold War series M.A.D. World, tracing the years when both superpowers held weapons capable of ending civilization but neither dared use them. The film opens with the Berlin Blockade, Soviet forces cutting every land route into the city until Western aircraft keep it alive on a continuous airlift of food and fuel, and follows the formation of NATO as small European nations bind themselves to American protection. It covers the shock of the USSR's first successful atomic test, the outbreak of the Korean War and Truman's contingency plans to use nuclear weapons to save the South, and the Pacific test of a hydrogen bomb a thousand times stronger than Hiroshima. Archival footage and narration also trace the spy networks, defections, and show trials that fed paranoia on both sides of the Iron Curtain. The episode moves chronologically through these flashpoints, building toward the era's central fact: two governments with the power to destroy the world, locked in a standoff neither could safely end.