The War Between the Land and the Sea
Updated: 12/30/2025, 12:43:42 PM Wikipedia source
The War Between the Land and the Sea is a British science fiction television miniseries. The series was created by Russell T Davies for BBC One and Disney+ as part of the Doctor Who franchise, known as the Whoniverse. Starring Russell Tovey and Gugu Mbatha-Raw, the series features UNIT in their attempt to prevent a global war caused by the return of the Sea Devils, now known as "Homo Aqua". Jemma Redgrave, Colin McFarlane, Alexander Devrient and Ruth Madeley reprise their respective roles from Doctor Who and its franchised series. The series was first reported on in July 2024, and filmed from August to December 2024 across Wales, Cardiff and Spain. Of the five episodes, the premiere and finale were written by Davies, with the other three by Pete McTighe. The War Between the Land and the Sea premiered on BBC One on 7 December 2025 with its first two episodes, and is scheduled to be released on Disney+ in 2026. The series has received generally positive reviews from critics for its performances (particularly Redgrave's) and its similarities to Torchwood.
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| No. | Title | Directed by | Written by | Original release date | UK viewers(millions) | |
| 1 | "Homo Aqua" | Dylan Holmes Williams | Russell T Davies | 7 December 2025 (2025-12-07) | 4.31 | |
| In an administrative error, logistics manager Barclay Pierre-Dupont becomes involved in a covert mission by the independent international agency Unified Intelligence Taskforce in Dragonera, Mediterranean Sea after the discovery and killing of a Sea Devil by fishermen. Dubbed Homo Aqua by UNIT General Austin Pierce, the deceased creature is recaptured by its own kind, killing two UNIT soldiers in the process. UNIT initiates first contact and agrees a treaty of peace, and the Homo Aqua simultaneously reveal their presence to humanity worldwide, desiring to speak to all humans. A meeting is set up in London and several members of the Homo Aqua are seen for the first time. They introduce their humanoid ambassador, Salt, who rejects humanity’s nominated ambassador, and requests Barclay serve as the human ambassador due to respect he showed to the deceased Homo Aqua previously. Barclay reluctantly agrees. | ||||||
| 2 | "Plastic Apocalypse" | Dylan Holmes Williams | Pete McTighe | 7 December 2025 (2025-12-07) | 3.56 | |
| Kate Lethbridge-Stewart, commander-in-chief of UNIT, agrees to work with Barclay to carry out diplomatic negotiations with Homo Aqua, who wish for worldwide pollution to cease. UNIT scientists examine eggs bred by Salt affected by pollution. At the next meeting, Salt requests Barclay drink contaminated water from the River Thames, but he refuses. Against UNIT instruction, he chooses to acknowledge humanity's polluting actions instead. Humanity presents a plan to reduce pollution within forty years, which Salt disagrees with. In response, the Homo Aqua use their technology to releases all trash from the world's waters back onto land (including the sunken Titanic), causing numerous fatalities. They then demand international shipping water and airways be closed. When world leaders challenge Salt, Barclay agrees to meet with the Homo Aqua under the Atlantic Ocean in the Romanche Gap. | ||||||
| 3 | "The Deep" | Dylan Holmes Williams | Pete McTighe | 14 December 2025 (2025-12-14) | TBD | |
| A UNIT team, consisting of Barclay, Pierce, technician Min Tso, Captain Louise Mackey, and diplomatic representatives Singh and Campbell, undergo Royal Navy training before the underwater meeting; Campbell brings a globe as a gift for Salt. During their submarine descent, Kate meets at Downing Street with Prime Minister Harry Shaw, US Army General Gunsberg, French Navy General Dussolier and utilities businessman Sir Keith Spears as tensions rise over who owns the world’s water. A new war plan to exterminate Homo Aqua, named "Severance", is prepared by Shaw, Spears, Gunsberg and Dussolier, who attempt to assassinate Kate but instead kill her partner, Colonel Christofer Ibrahim. At the Romanche Gap, the UNIT team exits into an environment created for them by Homo Aqua. Once in front of Salt’s assembly, Campbell reveals himself as a “Severance” mole and detonates a sonic bomb inside the globe. | ||||||
| 4 | "The Witch of the Waterfall" | Dylan Holmes Williams | Pete McTighe | 14 December 2025 (2025-12-14) | TBD | |
| The entire submarine crew and hundreds of Homo Aqua are killed by the explosion, except Barclay, who is saved by Salt. A deepfake of Salt is shown to the public, appearing to take responsibility for the bombing and threatening any human who enters the water. Salt is captured by UNIT but Barclay helps her escape. Shaw is pressured by Gunsberg into moving forward with "Severance", and agrees to have Spears, the obvious link, killed. Kate meets Salt's successor, Ambassador Tide, who informs 10 Downing Street that Salt is considered a traitor for saving a human and is subject to execution, threatening to use rust to destroy metal and cripple the Earth's fighting capabilities unless UNIT finds and hands her over to Homo Aqua. Salt and Barclay go on the run, admit their feelings for each other and kiss. Barclay contacts his ex-wife and requests they rendezvous on Lambeth Bridge, with a plan to hide Salt in North Wales. He also attempts to contact Kate to explain the situation. They are ambushed by both UNIT and British Army troops who Shaw has given Gunsberg command of. When it is revealed that the video of Salt is a deepfake, Kate reluctantly orders UNIT to fire on British soldiers to protect Salt and Barclay just as Salt releases a high-pitched shriek, giving her time to escape into the River Thames. | ||||||
| 5 | "The End of the War" | Dylan Holmes Williams | Russell T Davies | 21 December 2025 (2025-12-21) | TBD | |
| Homo Aqua expedite the melting of the ice caps, threatening to flood and choke humanity with carbon dioxide release. Kate struggles with PTSD after Ibrahim’s death, blackmailing her therapist to increase her paroxetine dose. Barclay begins secret nightly visits to Herne Bay, calling for Salt in the sea. In London, Kate threatens Shaw about “Severance”, but he denies knowledge of it. After Dussolier deactivates a signal disruptor, Barclay and Salt finally meet, and she doesn’t support the drastic actions. She tells him to ask for "accord", which has ancient meaning with Homo Aqua. UNIT agrees to broadcast the message throughout the oceans. However, thousands of deceased Homo Aqua begin showing up globally. Kate deduces it is biowarfare as part of “Severance”, where Downing Street engineered a virus that killed 90% of Homo Aqua. The Sea Devils surrender and tell humanity they have won the war, but to be wary of underwater lakes in the future. Barclay tearfully apologises, having not known. Homo Aqua accept terms to living unmolested in the deepest part of the Marianas Trench. Kate drives Barclay to the sea, and he finds Salt there. Salt gives Barclay gills, and they swim away together. Afterwards, Kate threatens a nearby hiker at gunpoint when he dumps a plastic bottle near the shore. | ||||||
| No. | Title | Air date | Overnight ratings | Consolidated ratings | Totalviewers(millions) | Ref(s) | |
| Viewers(millions) | Viewers(millions) | Rank | |||||
| 1 | "Homo Aqua" | 7 December 2025 | 2.82 | 1.49 | 14 | 4.31 | |
| 2 | "Plastic Apocalypse" | 7 December 2025 | 2.05 | 1.51 | 22 | 3.56 | |
| 3 | "The Deep" | 14 December 2025 | 2.45 | TBA | —.mw- N/a | TBA | |
| 4 | "The Witch of the Waterfall" | 14 December 2025 | 1.70 | TBA | —N/a | TBA | |
| 5 | "The End of the War" | 21 December 2025 | 1.79 | TBA | —N/a | TBA | |
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