An atomic blast in a tunnel in Nevada. Men enter a tunnel. A sign reads 'Danger, Do not enter without proper authorization'. The atomic bomb blast makes news with the disclosure that the shock was detected in Alaska over 2000 miles away. Men wearing helmets and shoe coverings inspect and make observations in the tunnel. A man passes a geiger counter near a tunnel wall spray painted with writing, "Seismometer site."
Officers and men of two U.S. patrol squadrons go through final tests in preparation for their expedition to Alaska in San Diego, California. PN-1 type flying boat or sea plane patrol aircraft take from water to make Alaskan trip to gather valuable aeronautical data.
Film opens with still portrait of U.S. Strategic Air (SAC) Commander in Chief, General Thomas S. Power., who is heard saying "Peace is Our Profession." Signs outside SAC headquarters, bearing the same message. Glimpse of entry gate to the headquarters. View of Atlas missile displayed on the headquarters grounds. Closeups of the missile, at top and bottom. Air Force personnel manning phones in SAC Control Center, underground,at Offutt Air Force Base, Nebraska. Others are seen walking near extremely large wall displays. View of the main Control Center with officers at their respective stations. View of person entering past guards into the underground facility. A briefing officer climbs onto a moving platform that elevates him so he can brief the center personnel, while referring to one of the large wall displays. View of teletype machines receiving messages in the Center. Digital clocks show times in places like Guam and Alaska. The famous "Red Telephone" from which it is possible to launch the entire SAC strike force, all over the world, within seconds after warning of an enemy attack has been received at SAC Headquarters. B-47 bombers taxiing on a base. Closeups of some taxiing. A B-47 bomber taking off and flying high above the camera. Extreme closeup from outside of crew members in cockpit of B-47 in flight. Flight of three B-47s flying in formation.
Klaxon horns sound alert signals and U.S. Air Force Strategic Air Command (SAC) flight crews, on alert, stop what they are doing and rush from their quarters to jeeps, that take them to their aircraft. They are seen clambering aboard their bomber aircraft. Closeup of a B-47E-30-LM Stratojet bomber, tail number 52-264, taxiing. Closeup of its wheels. The B-47 taking off from a base in the continental United States. In Alaska, a B-52 bomber taxis on a plowed taxiway in a snowy airfield. Local people watch as two B-52 bombers take off from a SAC base in Africa. Formations of B-52 bomber in flight. View of Air Force personnel inside the SAC headquarters Command and Control Center at Offutt Air Force Base, Nebraska. Scene shifts to a B-47 bomber flying directly overhead and an Atlas missile being launched. Glimpse of pilot and copilot inside the cockpit of a SAC bomber in flight. A nuclear bomb dropping from an open bomb bay viewed from inside the aircraft. An atomic explosion during one of the tests conducted by the United States, in the Pacific, from 1946 to 1958.
Testing of aircraft at airfield in Los Angeles. Crew men work on an aircraft parked on an airfield. Captain Wilkins stand near the aircraft before his flight from Alaska to North Pole. The aircraft in flight over the city.
First test flight of the amphibian aircraft to be used by United States Navy out of San Diego, California, to document unchartered territory in Alaska. An aircraft taxis and takes off from the airfield. Mountains in the background. The aircraft in flight over sea. Ships docked at sea in the background. The wheels of the aircraft fold and the aircraft taxis at sea. Pilots load tri-lens aerial camera aboard an aircraft. Lieutenant B H Wyatt, Commander of the expedition, discusses problems with pilots. The Commander points at a map. Tents in the background.
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