Film opens showing German astronomer, Erwin Finlay-Freundlich, who designed the solar telescope housed in the Einstein Tower observatory. He poses in a white laboratory coat (without his glasses) and then steps away to put them on and climb steps leading the way to the tower. The unusual building sits in a park-like setting on the Potsdam Telegraph Hill and contains Finlay-Freundlich's solar telescope for observations related to the theory of relativity. (Although he did not work at this facility, Einstein endorsed its construction and mission. In his honor, it is named the Einstein tower, aka Einsteinturm.) The remainder of the film shows various views of the observatory.
Representatives of three nations, seated around table at Potsdam Conference held at Cecilienhof in Potsdam, Germany. British prime minister, Clement Attlee; President of United States, Harry Truman; and representative of Soviet Union, Joseph Stalin at the Potsdam Conference, July 1945. They deliver an ultimatum of unconditional surrender to Japan. Swarms of B-29 bombers and Aircraft Carrier Task Forces destroy Japanese homeland. Planes on carrier decks.Navy Grumman carrier-based TBF aircraft dropping bombs.. Destruction of ships at sea. Mushroom cloud due to atomic bombing. Chart depicts the power of one atomic bomb. Britain's 'grand slam' bomb, most destructive conventional bomb ever produced. Doctor Ernest Orlando Lawrence, inventor of the cyclotron (atom smashing machine). A man works at the Cyclotron at the University of California, Berkeley. General Leslie Groves, head of the project speaks. He is seated with Dr Vannevar Bush, government director of science and research, and Dr Richard Tolman, technical expert. Quantities of uranium shipped from Alberta, Canada are used in bombs. The atomic bomb process (Manhattan Project) is developed in widely separated areas; scenes from Hanford Project plant in Richmond, Washington. Project personnel exit cars and enter into the search area. Lieutenant colonel Franklin T Matthias with the army corps of engineers, appointed to the Hanford Project. Sign of 'Oak Ridge' in Tennessee. Largest of the three atomic bomb plants located near the TVA dam. Employed personnel in atomic bomb plants. Man and woman employees at the plan read a Knoxville Journal newspaper in August 1945 with headline "Power of Oak Ridge Atomic Bomb hits Japs". View of dense prefabricated home communities to house large number of Oak Ridge plant workers. View of families setting up their houses in trailer towns after the prefabricated homes were full. People come out from the Henebry's Jewelers and super market. Joseph Stalin at conference. Russian artillery and troops in a parade at Red Square in Moscow, Russia (these parade scenes are from the May 1, 1945 May Day parade, just days before Germany's surrender). President Harry Truman reports on the latest developments regarding the war with Japan. He states that the United States is prepared to destroy every productive enterprise in Japan and the U.S. shall completely destroy its power to make war. He warns of an attack by the U.S. due to the rejection of the July 26th ultimatum at Potsdam. He warns that Japan "should expect a rain of ruin from the air; the like of which has never been seen on this earth." Truman notes that it will be followed by an unprecedented sea and land invasion of Japan.
View of Ellis Loring Dresel, United States commissioner to Germany and chargé d'affaires for the United States in Germany, seen standing beside a building in Berlin. Men gather for the signing of the United States peace treaty with Germany in Berlin, almost three years after the World War I armistice was signed. Mr. Dresel and two other diplomats enter a 1920's car parked on the street, as a small crowd stands by. The Treaty document is shown for the camera, bearing the signature of Ellis Loring Dresel.
The Potsdam Conference in Germany towards the end of World War II. U.S. President Harry Truman joins Supreme Allied Commander Dwight Eisenhower in a review of American troops in Frankfurt am Main city along the Main River in Germany. Exterior of the Cecilienhof in Potsdam. The Prime Minister of the United Kingdom Clement Attlee and his Foreign Secretary Ernest Bevin return to the Potsdam Conference. Soviet Communist Party General Secretary Joseph Stalin, Attlee, Truman and others seated around a round table.
The Potsdam Conference in Berlin, Germany. U.S. President Harry S. Truman meets General Secretary of the Communist Party of the Soviet Union Joseph Stalin. Harry Truman, Stalin and other delegates stand in a balcony. All the delegates including Truman and Stalin climb down the steps. A garden in Potsdam. A palace. Sculpture in the garden. The flags hanged on a wall. The cars drive in where the conference is to be held. The delegates enter the building. Truman crosses his arms and shakes hands with Churchill and Stalin Flashback shows President Roosevelt, UK Prime Minister Winston Churchill and Joseph Stalin at Yalta Conference. Aerial views of the Kremlin, Berlin and Potsdam. Truman, Churchill and Stalin seated on chairs pose. Truman speaks to Churchill. Other delegated stand behind them. A close up of Winston Churchill, Harry S. Truman and Joseph Stalin. Hitler reviews a parade. Aircraft flying in the parade. A view of Yalta. The Livadia Palace where the Yalta Conference was held. An insignia. Delegates seated around a conference table. The delegates sing a charter for peace. The soldiers stand in a group. The soldiers move towards a tank. They celebrate the victory against Germany.
Representatives of Allied nations gathered for Potsdam Conference at Schloss Cecilienhof Palace in Potsdam, Germany during World War II. Prime Minster of the United Kingdom Winston Leonard Spencer Churchill,President of the United States Harry S Truman and Premier of the Soviet Union Joseph Vissarionovich Stalin seated at the Cecilienh of garden for the Potsdam Conference.