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Season guide

Doctor Who: Season 3

45 episodes Premiered Sep 11, 1965
Previously on Doctor Who

Season 3 Lore Primer

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

  • Directly follows the overarching narrative developments of Doctor Who Season 2.
  • Faction dynamics and core character alliances shift under escalating external stakes.
  • Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • Sets up serialized story arcs that build directly toward the climactic season finale.
Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

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Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

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

11%
89%
Mytharc (5): Crucial lore & season climaxes
Core (40): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Four Hundred Dawns

Sep 11, 1965

After an encounter with a hostile robot called a Chumblie, the Doctor and his companions are rescued by a group of female Drahvins.

S3·E2 Core

Trap of Steel

Sep 18, 1965

With the knowledge that the planet will be destroyed in two days, the Drahvins instruct the Doctor to help them steal the Rills' ship.

S3·E3 Core

Air Lock

Sep 25, 1965

The Doctor and Vicki encounter the Rills and learn the situation is more complex than they thought while Steven finds the Drahvins' hospitality ever more perilous.

S3·E4 Core

The Exploding Planet

Oct 2, 1965

The Doctor and Vicki enlist the aid of the Chumblies to rescue Steven from the Drahvins and then find a way off the planet before its destruction.

S3·E5 Core

Mission to the Unknown

Oct 9, 1965

Whilst The Doctor, Steven and Vicki are traveling to their next destination. On the planet Kembel, Marc Cory, a Space Security Service agent discovers The Daleks are attending a se

S3·E6 Core

Temple of Secrets

Oct 16, 1965

The TARDIS lands in the middle of the Trojan War, where the Doctor is mistaken for the god Zeus.

S3·E7 Core

Small Prophet, Quick Return

Oct 23, 1965

While Odysseus forces the Doctor to find a way to win the war, Steven decides to get himself taken prisoner in order to enter Troy and find Vicki and the TARDIS.

S3·E8 Core

Death of a Spy

Oct 30, 1965

With Steven and Vicki being held prisoner by the Trojans, the Doctor's only hope of seeing them again is to suggest the idea of the Trojan Horse.

S3·E9 Core

Horse of Destruction

Nov 6, 1965

The Doctor waits inside the Trojan Horse for a chance to reach his companions but Steven's assumed identity as a Greek soldier and Vicki's growing feelings for Troilus endanger the

S3·E10 Core

The Nightmare Begins

Nov 13, 1965

The Doctor runs afoul of the Daleks and Special Security Agent Bret Vyon on the planet Kembel.

S3·E11 Core

Day of Armageddon

Nov 20, 1965

The Doctor infiltrates the Daleks' conference to try and discover their plans, leaving Steven, Katarina and Bret to find a way off the planet.

S3·E12 Core

Devil's Planet

Nov 27, 1965

The Doctor and his friends escape Kembel in the Spar ship but the Daleks force them down on the planet Desperus, where they are threatened by a group of convicts.

S3·E13 Core

The Traitors

Dec 4, 1965

With Katarina being held hostage, the Doctor, Steven and Bret are in danger of having to given in to Kirksen's demands, while, on Earth, Chen has them listed as traitors.

S3·E14 Core

Counter Plot

Dec 11, 1965

The Doctor, Steven and Sara are accidentally transported to the planet Mira where Chen sends the Daleks after them.

S3·E15 Core

Coronas of the Sun

Dec 18, 1965

The Doctor, Steven and Sara escape Mira in a Dalek pursuit ship but when they find the ship is returning to Kembel, they are forced to come up with a new plan to avoid the Daleks.

S3·E16 Core

The Feast of Steven

Dec 25, 1965

The Doctor, Steven and Sara visit a Liverpool police station on Christmas Day and a Hollywood film set during the 1920s.

S3·E17 Core

Volcano

Jan 1, 1966

The Daleks realise the Doctor has given them a fake Taranium Core while, on the planet Tigus, the Doctor encounters the Meddling Monk.

S3·E18 Core

Golden Death

Jan 8, 1966

The Doctor, Steven and Sara travel to Ancient Egypt, pursued by both the Daleks and the Meddling Monk.

S3·E19 Core

Escape Switch

Jan 15, 1966

Steven, Sara and the Monk are captured by the Daleks in order to force the Doctor to hand over the Taranium Core.

S3·E20 Core

The Abandoned Planet

Jan 22, 1966

The Doctor, Steven and Sara reach Kembel where they find the Daleks have betrayed their allies and imprisoned them.

S3·E21 Core

Destruction of Time

Jan 29, 1966

With the Daleks poised to invade the solar system, the Doctor decides his only option is to activate the Time Destructor prematurely, threatening the entire planet.

S3·E22 Core

War of God

Feb 5, 1966

The TARDIS lands in sixteenth century Paris and Steven becomes involved with a group of Huguenots.

S3·E23 Mytharc

The Sea Beggar

Feb 12, 1966

While trying to find the Doctor, Steven discovers a conspiracy to assassinate a man known as the Sea Beggar.

S3·E24 Core

Priest of Death

Feb 19, 1966

Steven has discovered the identity of the Sea Beggar, but can he warn the Huguenots in time?

S3·E25 Core

Bell of Doom

Feb 26, 1966

Steven rejoins the Doctor and they leave Paris just ahead of the massacre, leaving Anne behind.

S3·E26 Core

The Steel Sky

Mar 5, 1966

The Doctor, Steven and Dodo arrive on a giant spaceship millions of years in the future, transporting the last humans away from the doomed Earth.

S3·E27 Core

The Plague

Mar 12, 1966

With the Ark infected with a cold virus, the Doctor must convince the Guardians to trust him so he can find a cure.

S3·E28 Core

The Return

Mar 19, 1966

The Doctor, Steven and Dodo have travelled 700 years into the future and find that the Ark is now under the control of the Monoids as it approaches Refusis.

S3·E29 Core

The Bomb

Mar 26, 1966

The Monoids abandon the Ark, leaving Steven and the Guardians to die, but a mutiny in their ranks may give the Doctor a chance to bring about peace.

S3·E30 Core

The Celestial Toyroom

Apr 2, 1966

The Doctor, Steven and Dodo arrive in the realms of the Celestial Toymaker, who forces them to play his deadly games.

S3·E31 Core

The Hall of Dolls

Apr 9, 1966

While the Doctor continues to play the Trilogic Game with the Toymaker, Steven and Dodo are involved in a deadly game of musical chairs.

S3·E32 Core

The Dancing Floor

Apr 16, 1966

Steven and Dodo are forced to cross the dancing floor, where the Toymaker's dolls plan to force them to dance for eternity.

S3·E33 Core

The Final Test

Apr 23, 1966

As the Doctor nears the end of his game against the Toymaker, Steven and Dodo take on Cyril in a lethal game of hopscotch to try and recover the TARDIS.

S3·E34 Core

A Holiday for the Doctor

Apr 30, 1966

The TARDIS arrives in Tombstone, Arizona in 1891. Where the Doctor is looking for a dentist when he has a toothache, where The Doctor finds the local dentist is the famous Doc Holl

S3·E35 Core

Don't Shoot the Pianist

May 7, 1966

With the Clantons believing the Doctor to be Doc Holliday, Wyatt Earp takes him into protective custody but this leaves Steven and Dodo in danger.

S3·E36 Core

Johnny Ringo

May 14, 1966

Earp comes to Steven's rescue and arrests Phineas Clanton, prompting the Clantons to decide to enlist the help of Johnny Ringo.

S3·E37 Mytharc

The O.K. Corral

May 21, 1966

The Clantons have shot Warren Earp, leading to a showdown between the two families with the Doctor powerless to prevent bloodshed.

S3·E38 Core

The Savages (1)

May 28, 1966

The Doctor, Steven and Dodo arrive in the far future and are welcomed by the advanced civilisation of the Elders but soon begin to suspect they are hiding a secret.

S3·E39 Core

The Savages (2)

Jun 4, 1966

The Doctor, Steven and Dodo investigate why there are Savages in the Elders' city and uncover the true price of the Elders' perfect society.

S3·E40 Core

The Savages (3)

Jun 11, 1966

The Doctor has been subjected to the Elders' extraction process and Steven and Dodo must return to their city to rescue him.

S3·E41 Core

The Savages (4)

Jun 18, 1966

The Doctor urges the Savages to finally bring an end to the Elders' oppression and enlists the help of an unlikely ally.

S3·E42 Core

The War Machines (1)

Jun 25, 1966

The Doctor and Dodo return to London in the present day where the Doctor becomes concerned about WOTAN, a new super-computer installed in the Post Officer Tower.

S3·E43 Core

The War Machines (2)

Jul 2, 1966

Dodo is under the control of WOTAN and attempts to lure the Doctor into a trap, while the rest of WOTAN's slaves begin construction on its robotic War Machines.

S3·E44 Mytharc

The War Machines (3)

Jul 9, 1966

Ben tries to escape from the warehouse but is captured by Polly, who is now also under WOTAN's control, and forced to work on construction the War Machine.

S3·E45 Mytharc

The War Machines (4)

Jul 16, 1966

The first War Machine is defeated but the Doctor only has a matter of hours to destroy WOTAN before the rest of its army is activated.