The War Between the Land and the Sea

The War Between the Land and the Sea (2025)

BBC One
Dec 7, 2025 GB Ended
7.4 ★ ★ ★ ★ ★
162 votes
Sci-Fi & Fantasy Drama

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Trailer

Seasons & Episodes

Searching for watch The War Between the Land and the Sea season 1 online? Use the episode list below.

Season

1

Episodes

1 - 1
Episode 1 of The War Between the Land and the Sea
Homo Aqua
Dec 7, 2025
★ 6.3
1 - 2
Episode 2 of The War Between the Land and the Sea
Plastic Apocalypse
Dec 7, 2025
★ 6.2
1 - 3
Episode 3 of The War Between the Land and the Sea
The Deep
Dec 14, 2025
★ 5.6
1 - 4
Episode 4 of The War Between the Land and the Sea
The Witch of the Waterfall
Dec 14, 2025
★ 5.4
1 - 5
Episode 5 of The War Between the Land and the Sea
The End of the War
Dec 21, 2025
★ 4.9

Watch The War Between the Land and the Sea (2025) online, explore episodes, cast, trailers, ratings, and series information.

Synopsis

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.

Keywords

ocean, sea, miniseries, alien invasion, spin off, sea monster, interspecies romance, sea creature.

Stills

Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea Still from The War Between the Land and the Sea

Similar series

Invasion, V, War of the Worlds, Secret Invasion, First Wave, V, Roswell, New Mexico, NOS4A2, V: The Final Battle, La Brea.

Main cast

Russell Tovey
Russell Tovey
as Barclay Pierre-Dupont
Gugu Mbatha-Raw
Gugu Mbatha-Raw
as Salt
Jemma Redgrave
Jemma Redgrave
as Kate Lethbridge-Stewart
Ruth Madeley
Ruth Madeley
as Shirley Bingham

Official trailer