Respected airman Elissen (Hans Albers) finagled agreement from aviation heiress Claire Lennartz (Sybille Schmitz) to execute the visionary design of his engineer buddy Droste (Paul Hartmann) for an ocean-stationed floating airport hub. The romantic triangle that develops, however, must be set aside when the revolutionary project's targeted by saboteurs. First of three international and concurrently-filmed takes on Curt Siodmak's story co-stars Peter Lorre. 114 min. Standard; Soundtrack: German; Subtitles: English; English-language version "F.P. 1 Doesn't Answer" (1933); audio commentary. In German with English subtitles. BW/Rtg: NR