An account of the atmospheric nuclear testing campaign in French Polynesia (preparations, detonation, and analysis). During this campaign, which opened on May 8, 1967, three device tests were conducted. This film successively presents: the installations (Papeete, Hao, the Land and Sea centers, Moruroa); the Naval assets (base ships, LCTs, Ouragan, Rance, Garonne, De Grasse); the meteorological and transmission resources; the firing range; maritime surveillance; briefings; computers; and the tests Altaïr (June 5), Antarès (June 27), and Arcturus (July 2).