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  • BBC One

The War Between the Land and the Sea

  • 2025
  • Ended
  • Sci-Fi & Fantasy · Drama
  • 1 season
  • 7.3/10

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.

Latest: Miniseries · 2025

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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.

  1. E1. Homo Aqua

    Dec 7, 2025 · 44m

    Barclay's ordinary life becomes a world of terror when an ancient species rises from the sea. As UNIT fights for control, the summit on the Thames reveals terrifying secrets.

  2. E2. Plastic Apocalypse

    Dec 7, 2025 · 48m

    Barclay becomes humanity's ambassador when the mysterious Salt emerges from the Tank. But his family's life is torn apart when Salt wreaks revenge upon all mankind.

  3. E3. The Deep

    Dec 14, 2025 · 45m

    Barclay makes a terrifying descent into the world of Homo Aqua. Back on the land, Kate stands alone as Downing Street conspires with the army to change the course of the war.

  4. E4. The Witch of the Waterfall

    Dec 14, 2025 · 46m

    Barclay and Salt go on the run in a war-torn London as UNIT reels from disaster. But when Tide threatens the land and Gunsberg advances his plans, the Severance schemes demand blood.

  5. E5. The End of the War

    Dec 21, 2025 · 54m

    Barclay stands alone, Salt is lost, UNIT is powerless, and the oceans rise as the war reaches its climax. While traitors conspire, can Barclay find Salt before it's too late?

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