Disney Branded Television and BBC jointly announced The War Between The Land And The Sea, an all-new Doctor Who spinoff, during San Diego Comic-Con. Leading the five-part series is Russell Tovey and Gugu Mbatha-Raw, alongside returning Doctor Who cast members Jemma Redgrave (as Kate Lethbridge-Stewart) and Alexander Devrient (as Colonel Ibrahim).

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 steps into action as the land and sea wage war. Created by Doctor Who showrunner and executive producer Russell T Davies, who wrote the spinoff with Pete McTighe, the series features the triumphant return of the Sea Devils, classic Doctor Who villains first seen in 1972.

Filming begins next month and will be directed by Dylan Holmes-Williams, director of two Doctor Who season one episodes: “73 Yards” and “Dot and Bubble.” The series will air exclusively on Disney+ where available and BBC One and BBC iPlayer in the U.K.