Japanese Navy sailors get instructions from Captain on deck of Japanese submarine . The Skipper gives directions on a map. Group of officers drinking Sake on the deck of submarine. Sailor blows a bugle before departure. Cables released from the bits. Japanese Sailors salute and wave as the submarine departs for a mission in World War II.
Atomic bomb test "Baker" at Bikini Atoll, Micronesian Islands in the Pacific Ocean during Operation Crossroads in July 1946. Aerial view of ships at anchor, grouped in a small area. Broken clouds in sky. Underwater explosion of bomb "Helen of Bikini", shot Baker, occurs as it throws a shock wave. It forms a huge round white cloud, grey smoke curls up its center. Lower clouds around the area dissipates. Nuclear test mushroom cloud hangs over the ships. A large trunk of the bomb blast extends down into the water. Many ships surround the blast area.
Excellent views of a U.S. Navy HO3S-1A helicopter. (This is the U.S. Navy version of the Sikorsky S-51, also known as an H-5). This particular helicopter is one of the first four Sikorsky S-51 helicopters ordered by the U.S. Navy in 1946 for use in Operation High Jump operations in Antarctica. The helicopter on the ship deck in the Pacific Ocean . U.S. Navy Lieutenant Tracy gets onto the helicopter. The helicopter takes off from the ship deck. The navy helicopter comes back in for a landing. Lieutenant Tracy gets off the helicopter and crew members secure it on the flight deck.
Test launchings of R-16 intercontinental ballistic missiles from their underground silos. (Missiles are also designated by NATO code name SS-7 "Saddler" or as Soviet GRAU-8k64). Next scene shows detonation of a atomic bomb or nuclear device in water with ships surrounding the blast area. (Possibly from U.S. nuclear test in Operation Crossroads in 1946)
'Radioactive contamination' about the hazards posed by the sinking of a United States aircraft carrier and the methods to control radioactivity. United States Navy F6F-3 aircraft land aboard United States aircraft carrier USS Independence (CVL-22) in the Pacific Ocean during World War II. The torn down carrier Independence being towed away after it was used as a target for an atomic bomb test in 1946 as part of Operation Crossroads. Men at a construction site talk about contamination caused in sea water due to sinking of Independence containing radioactive waste. Two women in a car also discuss the issue. An atomic explosion occurs underwater during a test. Damaged Independence ship after TEST ABLE. A mushroom cloud formation as a result of atom bomb explosion. Parts of the carrier being tested for radio active contamination at a defense laboratory in the United States. Independence being sunk in 1951. Civilians encounter several dangers in their occupations and narrator points out everyday risks in day to day lives as scenes show firemen fighting fire, a house wife working in a kitchen and responding to a pot boiling over on the stove, a man slips on a bar of soap in the shower; and scene of reckless driving on highways. View of test nuclear explosion underwater in the Pacific.
Cluster of test vessels is seen in aerial view of test site, Bikini Atoll, Pacific Ocean. Baker test, of underwater atomic bomb burst, in Operation Crossroads, July, 1946. Detonation produces large shock wave, water column and mushroom cloud.