Is The War Between the Land and the Sea coming back?

The War Between the Land and the Sea ended on December 21, 2025, on BBC iPlayer. The series concluded after its five-episode run, which started on December 7, 2025. There are no plans for a new season or continuation at this time.

The show was a science-fiction drama that explored the emergence of an ancient species from the ocean, which caused an international crisis. It depicted how humanity responded to this threat, with the organization UNIT stepping into action as land and sea regions became embroiled in conflict. The series combined adventure and drama elements to portray the escalating tensions and efforts to prevent catastrophe.

The cast included Russell Tovey as Barclay Pierre-Dupont and Gugu Mbatha-Raw as Salt. The series was rated 6.3 on TVMaze and had a runtime of 47 minutes per episode.