The best episodes of Doctor Who Season 9

Season 9 only — ranked by viewer rating, highs first. Vote on a placement to back it or contest it.

  1. 01

    S09E09 · February 26, 1972 · 25m

    The Sea Devils, Part One8.4

    The Doctor and Jo visit the Master at his island prison where the Doctor becomes curious about a number of ships sinking in the area.

  2. 02

    S09E11 · March 11, 1972 · 25m

    The Sea Devils, Part Three8.4

    The Doctor is held prisoner by Trenchard while the Master attempts to contact the Sea Devils.

  3. 03

    S09E13 · March 25, 1972 · 25m

    The Sea Devils, Part Five8.4

    The Doctor is taken to the Sea Devils' underwater colony where he tries to make peace with the creatures, only for the navy to attack the base.

  4. 04

    S09E04 · January 22, 1972 · 25m

    Day of the Daleks, Part Four8.3

    The guerrillas infiltrate the Daleks' base to rescue the Doctor and Jo and ask them to return to their own time and alter history before the 20th century is plunged into a Third World War.

  5. 05

    S09E06 · February 5, 1972 · 25m

    The Curse of Peladon, Part Two8.3

    The Doctor is convinced the Ice Warriors are trying to sabotage the conference but his attempts to prove it see him accused of sacrilege.

  6. 06

    S09E10 · March 4, 1972 · 25m

    The Sea Devils, Part Two8.3

    The Doctor and Jo are trapped on the fort by a Sea Devil while the Master convinces Trenchard to help him steal some electronic components.

  7. 07

    S09E12 · March 18, 1972 · 25m

    The Sea Devils, Part Four8.3

    The Sea Devils attack the island prison and rescue the Master, prompting the Doctor to venture underwater to try and contact them.

  8. 08

    S09E14 · April 1, 1972 · 25m

    The Sea Devils, Part Six8.3

    The Sea Devils take over the naval base and the Doctor is forced to help the Master find a way to revive their colony.

  9. 09

    S09E15 · April 8, 1972 · 25m

    The Mutants, Part One8.3

    The Doctor and Jo arrive on the planet Solos, on a assignment by the Time Lords. Where the Doctor and Jo learn that the native Solonians are mutating into ant-like mutant creatures and they uncover a conspiracy, where the evil Marshal of the Earth Empire plots to rule Solos for himself and plans to convert Solos atmosphere, since the planet's atmosphere is poisonous, so the planet can be colonized by the humans and he plans to wipe out all the mutated Solonians, who are evolving into a advanced super race.

  10. 10

    S09E21 · May 20, 1972 · 25m

    The Time Monster, Part One8.2

    UNIT are invited to observe a demonstration of the new TOMTIT machine, unaware its creator, Professor Thascales, is actually the Master.

  11. 11

    S09E24 · June 10, 1972 · 25m

    The Time Monster, Part Four8.2

    The Master prepares to travel back to Atlantis but the Doctor links his TARDIS to the Master's to try and stop him.

  12. 12

    S09E25 · June 17, 1972 · 25m

    The Time Monster, Part Five8.2

    Both TARDISes reach Atlantis, where the Doctor befriends King Dalios while the Master enlists the help of Queen Galleia to try and obtain the crystal of Kronos.

  13. 13

    S09E26 · June 24, 1972 · 25m

    The Time Monster, Part Six8.2

    The Doctor enters the labyrinth to try and protect Jo from the minotaur but the Master has seized control of Atlantis and prepares to summon Kronos again.

  14. 14

    S09E03 · January 15, 1972 · 25m

    Day of the Daleks, Part Three8.1

    The Doctor forces the guerrillas to take him to the 22nd century where he is soon captured by the Controller.

  15. 15

    S09E05 · January 29, 1972 · 25m

    The Curse of Peladon, Part One8.1

    The Doctor and Jo arrive on the medieval planet Peladon, where the Doctor is mistaken for the Earth Delegate of the Galactic Federation and Jo is mistaken for a princess. Where the Doctor uncovers a conspiracy, as he exposes the evil scheme of the high-priest Hepesh who bids to prevent King Peladon from joining the galactic Federation.

  16. 16

    S09E07 · February 12, 1972 · 25m

    The Curse of Peladon, Part Three8.1

    The Doctor is sentenced to fight Grun to the death and his attempt to escape leads to an encounter with Aggedor.

  17. 17

    S09E08 · February 19, 1972 · 25m

    The Curse of Peladon, Part Four8.1

    Hepesh's plan has been exposed but he is still determined to prevent Peladon joining the Galactic Federation by leading a rebellion against the King.

  18. 18

    S09E22 · May 27, 1972 · 25m

    The Time Monster, Part Two8.1

    The Doctor realises the Master is trying to harness the power of Kronos, last of the Chronovores, but is unaware Percival is harbouring him at the institute.

  19. 19

    S09E23 · June 3, 1972 · 25m

    The Time Monster, Part Three8.1

    The Master enlists the help of Krasis to control Kronos while Yates tries to bring the TARDIS to the institute only to come under attack from dangers from the past.

  20. 20

    S09E16 · April 15, 1972 · 25m

    The Mutants, Part Two8.0

    Ky transports himself and Jo down to Solos and the Marshal only agrees to help her if the Doctor assists Professor Jaeger in altering Solos' atmosphere.

  21. 21

    S09E17 · April 22, 1972 · 25m

    The Mutants, Part Three8.0

    The Doctor and Varan travel down to Solos to search for Jo and Ky but the Marshal orders his men to pursue them.

  22. 22

    S09E18 · April 29, 1972 · 25m

    The Mutants, Part Four8.0

    The Doctor and his friends are led to safety by Professor Sondergaard, who tries to help the Doctor translate the tablets.

  23. 23

    S09E19 · May 6, 1972 · 25m

    The Mutants, Part Five8.0

    The Marshal's premature use of Jaeger's experiment is threatening to destroy Solos' atmosphere and the Doctor returns to Skybase to try and correct the damage.

  24. 24

    S09E20 · May 13, 1972 · 25m

    The Mutants, Part Six8.0

    The Doctor is forced to help the Marshal cover up his actions with the Investigator but Jo and the others attempt to escape to expose him.

  25. 25

    S09E01 · January 1, 1972 · 25m

    Day of the Daleks, Part One7.9

    When someone tries to assassinate diplomat Sir Reginald Styles, UNIT investigate the possibility his attacker came from the future.

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