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.
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Russell Tovey
Barclay Pierre-Dupont
Gugu Mbatha-Raw
Salt
Jemma Redgrave
Kate Lethbridge-Stewart
Ruth Madeley
Shirley Bingham
All 5 episodes plotted by IMDb rating
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5 episodes • 2025Avg: 5.7Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Homo Aqua | Dec 7, 2025 | 6.3 |
| 2 | Plastic Apocalypse | Dec 7, 2025 | 6.2 |
| 3 | The Deep | Dec 14, 2025 | 5.6 |
| 4 | The Witch of the Waterfall | Dec 14, 2025 | 5.4 |
| 5 | The End of the War | Dec 21, 2025 | 4.9 |
