David Attenborough looks into the ocean's depths to discuss the coelacanth, a primeval fish hidden for 400 million years. Its mysterious movements reveal vital clues about life's journey from sea to land, as well as secrets of evolution and survival.
Watch the official Deep Ocean: Kingdom of the Coelacanth 2026 trailer in HD below.
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David Attenborough as Self - Narrator (voice)
[ディープ オーシャン] 幻のシーラカンス王国 Trailer
United Kingdom 21 September 2025
United States 18 April 2026
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Artwork, screen shots, trailers and other imagery is © 2026 ZDF/Arte, NHK Enterprises, OceanX Media.