Preparations for US atomic bomb tests on Eniwetok Atoll in Marshall Islands

Title: "Eniwetok Atom Bomb Explosions!" superimposed over atom bomb explosion / title card: "Top-Secret until now, these films remind the world of its choice: an unending fight for peace - or atomic war" / aerial shot of small islands in Atoll / animated map of Pacific Ocean showing location of Eniwetok Atoll / bulldozer knocking over palm tree / steam shovel moving sand / view from below of bulldozer pushing stones and gravel / scientist installing gamma ray detectors in ground / scientist places object in tube in ground / scientist fixing cloth samples on boards stuck in ground / two scientists placing cloth samples on boards stuck in ground / scientist attaching paint samples to boards / shot from moving boat of photo tower in water near island / two scientists working on remote control cameras / CU two remote controlled cameras / scientists walking away to leave island / barge carrying scientists leaving island / shot from moving boat of ship in task force / shot from below of rotating radar antenna on ship / robot plane for atmospheric measurements taking off at night / scientist standing front of master control station speaking into telephone/ closer view of another scientist standing in front of master control station speaking into radio microphone / Note: exact month/day not known