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