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.
Seasons & Episodes
Top Cast
Russell Tovey
Barclay Pierre-Dupont
Gugu Mbatha-Raw
Salt
Jemma Redgrave
Kate Lethbridge-Stewart
Gethin Alderman
Homo Aqua
Gethin Alderman
Home Aqua
Ruth Madeley
Shirley Bingham
Cat Gannon
Kirby Pierre-Dupont
Charles Sandford
Homo Aqua
Ann Akinjirin
Barbara Pierre-Dupont
Alexander Devrient
Colonel Christofer Ibrahim