The War Between the Land and the Sea Season 1 Episode release dates & where to watch
Premiered
Sunday, December 7, 2025
Ended: Sunday, December 21, 2025
When does The War Between the Land and the Sea Season 1 come out?
The War Between the Land and the Sea Season 1 premiered Sunday, December 7, 2025 on BBC One and ended Sunday, December 21, 2025. The season has 5 episodes.
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.
Last updated
The War Between the Land and the Sea Season 1 release schedule
| Episode | Release date |
|---|---|
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1. Homo Aqua 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. |
Sunday · 11 months ago |
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2. Plastic Apocalypse 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. |
Sunday · 11 months ago |
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3. The Deep 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. |
Sunday · 11 months ago |
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4. The Witch of the Waterfall 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. |
Sunday · 11 months ago |
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5. The End of the War Finale 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? |
Sunday · 10 months ago |
The War Between the Land and the Sea Season 1 guest stars
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Rodo Gener
Agustin
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Henry Nott
Corporal Pip Morgan
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Fia Hadeed
Private Bushra Abdallah
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Catherine Garton
Private Jane Hart
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Delroy Brown
Jackson St Lewis
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Leo Anthony
Roger Trevithick
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Alys Metcalf
UK Reporter
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Benito Curteanu
Marko Novak
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Patrick Baladi
Sir Keith Spears
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Cordelia Bugeja
Esther Spears
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Antonia Bernath
Rose-Marie Hunt
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Iestyn Arwel
Platoon Leader
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Zina Esepciuc
Russian Newsreader (as Zina Ida)
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Shanice Archer
USA Reporter
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Douglas Hansell
Australian Diplomat
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William Gaminara
Ted Campbell
The War Between the Land and the Sea Season 1 FAQ
When does The War Between the Land and the Sea Season 1 come out?
The War Between the Land and the Sea Season 1 premiered Sunday, December 7, 2025 on BBC One.
How many episodes are in The War Between the Land and the Sea Season 1?
The War Between the Land and the Sea Season 1 has 5 episodes.
Are new episodes of The War Between the Land and the Sea Season 1 released weekly?
New episodes are released weekly.
When is the The War Between the Land and the Sea Season 1 finale?
The The War Between the Land and the Sea Season 1 finale (Episode 5) aired Sunday, December 21, 2025.
How do I get notified when new The War Between the Land and the Sea Season 1 episodes are released?
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