

The War Between the Land and the Sea
2025 · BBC iPlayer · 47 min · 1 season
S01E05 · The End of the War
Mon, 22 Dec, 8:00 am
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?
About
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.
Episodes
- E01
Homo Aqua
Mon, 8 Dec· 44 minBarclay'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.
- E02
Plastic Apocalypse
Mon, 8 Dec· 47 minBarclay 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.
- E03
The Deep
Mon, 15 Dec· 44 minBarclay 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.
- E04
The Witch of the Waterfall
Mon, 15 Dec· 45 minBarclay 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.
- E05
The End of the War
Mon, 22 Dec· 54 minBarclay 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?
Cast

Russell Tovey
Barclay Pierre-Dupont

Gugu Mbatha-Raw
Salt




