Part 1 shows three views of a nighttime atomic bomb test explosion in New Mexico. Part 2 shows scenes of Russian soldiers parading and standing at attention as Russia's activities since declaring war on Japan are described. Part 3, Truman announces Japan's acceptance of peace terms. Shows crowds celebrating the peace in Washington, Chicago, San Francisco, and New York. Part 4 shows details of the ceremony aboard the battleship Missouri as the Japanese surrender is signed in Tokyo Bay. Admiral Halsey greets Admiral Nimitz. General MacArthur and Premier Shigemitsu lead their parties aboard and to their places. MacArthur opens the ceremony with a speech (Reel 2). Shigemitsu signs; MacArthur signs, gives pen to Generals Wainwright and Percival. General Nimitz and representatives of the other eight Allied countries sign the surrender. General Sutherland presents the Japanese copy to Shigemitsu. Admiral King, addressing the film audience, pays compliments to the naval forces.