

When a fearsome and ancient species emerges from the ocean, dramatically revealing themselves to humanity, an international crisis is triggered. With the entire…
Sci-Fi & Fantasy, Drama • Series • 2025 • 1 season
Starring: Russell Tovey, Gugu Mbatha-Raw, Jemma Redgrave
Created by: Russell T Davies

S1 E1 - 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.
Dec 7, 2025 • 44m

S1 E2 - 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.
Dec 7, 2025 • 48m

S1 E3 - 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.
Dec 14, 2025 • 45m

S1 E4 - 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.
Dec 14, 2025 • 46m

S1 E5 - The End of the War
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?
Dec 21, 2025 • 54m
The War Between the Land and the Sea
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.
Sci-Fi & Fantasy, Drama • TV Series • 2025