The War Between the Land and the Sea was filmed between August and December 2024. It is expected to star Russell Tovey, Gugu Mbatha-Raw, Jemma Redgrave, and Alexander Devrient. The series is set to feature UNIT as they attempt to prevent a global war caused by the return of the Sea Devils. The five-part series was written by Russell T Davies and Pete McTighe. It will consist of five episodes and is currently expected to be released in 2025.