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.

Cast:Russell Tovey, Gugu Mbatha-Raw, Jemma Redgrave, Ruth Madeley,

Genre:Sci-Fi & Fantasy, Drama,

country:United Kingdom,

Production:Bad Wolf, BBC Studios Productions,