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Season guide

Doctor Who: Series 4

13 episodes Premiered Apr 5, 2008 Updated Oct 1, 2026

Doctor Who Season 4 continues the overarching saga across thirteen episodes. The series features the Doctor, who is a Time Lord described as a nine hundred year old alien with two hearts. The epic adventures take place across space and time in a famous blue box, offering viewers the trip of a lifetime. The program falls under the genres of action and adventure, drama, and science fiction and fantasy, and is broadcast

Previously on Doctor Who

Season 4 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ The Doctor is a Time Lord, characterized as a 900 year old alien with two hearts.
  • ⚡ The Doctor travels through space and time in a famous blue box.
  • ⚡ The series is produced as an in-house production by BBC Television.
  • ⚡ The show spans across genres including action, adventure, drama, and science fiction and fantasy.
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Season overview

Doctor Who Season 4 continues the overarching saga across thirteen episodes. The series features the Doctor, who is a Time Lord described as a nine hundred year old alien with two hearts. The epic adventures take place across space and time in a famous blue box, offering viewers the trip of a lifetime. The program falls under the genres of action and adventure, drama, and science fiction and fantasy, and is broadcast by BBC Television.

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Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

38%
62%
Mytharc (5): Crucial lore & season climaxes
Core (8): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Partners in Crime

Apr 5, 2008 · 51 min

During an alien emergency in London, a woman called Donna Noble must search for an old friend who can save the day - a man named the Doctor. But can even the Doctor halt the plans

S4·E2 Core

The Fires of Pompeii

Apr 12, 2008 · 51 min

The Doctor takes Donna back to Pompeii, on the day of the eruption of Mt. Vesuvius, and is faced with a great moral dilemma. Should they warn the residents of the impending disaste

S4·E3 Core

Planet of the Ood

Apr 19, 2008 · 46 min

The Doctor and Donna find themselves on an icy planet known as the Ood-Sphere. There they discover what drove the Ood to be a servant race.

S4·E4 Core

The Sontaran Stratagem (1)

Apr 26, 2008 · 47 min

Aided by the Rattigan Academy, the Sontarans establish a covert base at the mysterious ATMOS Factory. Can the Doctor stop the Sontarans from unleashing a potent terror that will br

S4·E5 Core

The Poison Sky (2)

May 3, 2008 · 47 min

The Sontarans continue their evil plot and begin to "choke" the Earth. The Doctor and Donna, now teamed with Martha have to stop them! Can they save Earth before it's too late?

S4·E6 Core

The Doctor's Daughter

May 10, 2008 · 48 min

The Doctor lands on the remote planet Messaline as an age-old war rages and the threat of genocide looms. When Martha is kidnapped by the Hath, the Doctor is distracted by "the mos

S4·E7 Core

The Unicorn and the Wasp

May 17, 2008 · 47 min

The Doctor and Donna's meet Agatha Christie at a manor owned buy Lady Eddison. When Agatha Christie goes missing and a body turns up in the library the adventure turns into a pulp

S4·E8 Mytharc

Silence in the Library (1)

May 31, 2008 · 45 min

The Doctor and Donna land in a frightening position in the far future. While investigating a derelict library, the duo come face to face with the disembodied mind of a little girl,

S4·E9 Mytharc

Forest of the Dead (2)

Jun 7, 2008 · 48 min

As the shadows rise, the Doctor forges an alliance with the mysterious River Song.

S4·E10 Core

Midnight

Jun 14, 2008 · 46 min

While visiting Midnight, a beautiful and luxurious planet full of lavish and high-tech cities, a terrifying problem arises that leaves The Doctor powerless.

S4·E11 Core

Turn Left

Jun 21, 2008 · 52 min

Whilst attending a carnival on the Chino-planet of Shan Shen, Donna is cajoled into having her fortune read, where her past is carefully examined. With the Doctor missing, Donna mu

S4·E12 Mytharc

The Stolen Earth (1)

Jun 28, 2008 · 48 min

The Earth has been moved, and it's a race against time as Donna and the Doctor try to find it before the Daleks destroy everything; they head for the Shadow Proclamation and the Me

S4·E13 Mytharc

Journey's End (2)

Jul 5, 2008 · 66 min

The Earth has been overwhelmed and the universe faces dominion by the resurgent forces of a terrifying and limitless empire led by one of The Doctor's greatest enemies. Aiding the

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