When a fearsome and ancient species emerges from the ocean, dramatically revealing themselves to humanity, an international crisis is triggered. With the entire population at risk, UNIT step into action as the land and sea wage war.
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Ratings: TVMaze: 8.0/10
Released: December 7, 2025
Genres: Adventure Drama Sci-Fi
Countries: United Kingdom
Companies: BBC iPlayer, Bad Wolf, BBC Studios Productions
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