Overview
- BBC One and BBC iPlayer will premiere the five-part series on 7 December.
- UNIT takes center stage as the Sea Devils emerge from the oceans and trigger an international crisis.
- Russell T Davies says the absence of the Doctor removes the safety net and pushes characters toward tougher choices.
- A new behind-the-scenes featurette spotlights climate and political pressures driving Aquakind, showcases large-scale sets, and features the principal cast led by Russell Tovey and Gugu Mbatha-Raw.
- The creative team promises deeper Sea Devils lore with a visit to their world in episode 3 and Easter eggs for fans, while a Disney+ release is reported for 2026.