Aired Sunday 21 December, 8:05pm - 9:00pmon BBC One London

The War Between the Land and the Sea

Name: 8:05pm - Series 1 Episode 5
Start: 2025-12-21T20:05:00Z
End: 2025-12-21T21:00:00Z
Location: BBC One London

Series 1 Episode 5: The End of the War

Barclay stands alone, Salt is lost, UNIT is powerless, and the oceans rise as the war reaches its climax. While traitors conspire, can Barclay find Salt before it's too late?

Category: Drama / Science fiction
Original air date: 21/12/2025

Cast and crew

Dylan WilliamsDirector
Russell ToveyBarclay
Gugu Mbatha-RawSalt
Jemma RedgraveKate Lethbridge-Stewart
Alexander DevrientColonel Ibrahim
Ruth MadeleyShirley Ann Bingham
Colin McFarlaneGeneral Austin Pierce
Adrian Lukis
Patrick Baladi
Vincent Franklin
Francesca Corney
Iestyn Arwel
Hannah Donaldson
Manpreet Bachu
Ann Akinjirin
Samuel Oatley
Carolin Stoltz
Devesh Kishore
Catherine Garton
Eddie Elliott
Barbara Probst
Stewart Alexander
Cat Gannon
Alexander Tol
Quanna Masterson
Alys Metcalf
Lucy Vandi
Antonia Bernath
Adam Howden
Gethin Alderman
Charles Sandford

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