Season 9
26 episodes · Jan 1, 1972
It was noted for being the beginning of the end of the Doctor's exile on Earth, with the Doctor's TARDIS still under the control of the Time Lords (The Mutants) and restricted freedom (The Curse of Peladon and The Time Monster), as well as UNIT and the Master appearing less frequently in compared to the previous two series. As well as the return of the Daleks and the Ice Warriors, this series also introduced Alpha Centauri, Aggedor and the Silurians' aquatic cousins the Sea Devils.
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S9E1Day of the Daleks (1)
Jan 1, 197225mWhen someone tries to assassinate diplomat Sir Reginald Styles, UNIT investigate the possibility his attacker came from the future.
S9E2Day of the Daleks (2)
Jan 8, 197225mJo uses the guerrillas' time machine to travel to the 22nd century where the Controller tricks her into telling the Daleks where she's come from.
S9E3Day of the Daleks (3)
Jan 15, 197225mThe Doctor forces the guerrillas to take him to the 22nd century where he is soon captured by the Controller.
S9E4Day of the Daleks (4)
Jan 22, 197225mThe 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.
S9E5The Curse of Peladon (1)
Jan 29, 197225mThe 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.
S9E6The Curse of Peladon (2)
Feb 5, 197225mThe Doctor is convinced the Ice Warriors are trying to sabotage the conference but his attempts to prove it see him accused of sacrilege.
S9E7The Curse of Peladon (3)
Feb 12, 197225mThe Doctor is sentenced to fight Grun to the death and his attempt to escape leads to an encounter with Aggedor.
S9E8The Curse of Peladon (4)
Feb 19, 197225mHepesh's plan has been exposed but he is still determined to prevent Peladon joining the Galactic Federation by leading a rebellion against the King.
S9E9The Sea Devils (1)
Feb 26, 197225mThe Doctor and Jo visit the Master at his island prison where the Doctor becomes curious about a number of ships sinking in the area.
S9E10The Sea Devils (2)
Mar 4, 197225mThe Doctor and Jo are trapped on the fort by a Sea Devil while the Master convinces Trenchard to help him steal some electronic components.
S9E11The Sea Devils (3)
Mar 11, 197225mThe Doctor is held prisoner by Trenchard while the Master attempts to contact the Sea Devils.
S9E12The Sea Devils (4)
Mar 18, 197225mThe Sea Devils attack the island prison and rescue the Master, prompting the Doctor to venture underwater to try and contact them.
S9E13The Sea Devils (5)
Mar 25, 197225mThe 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.
S9E14The Sea Devils (6)
Apr 1, 197225mThe Sea Devils take over the naval base and the Doctor is forced to help the Master find a way to revive their colony.
S9E15The Mutants (1)
Apr 8, 197225mThe Doctor and Jo arrive on the planet Solos, on a assignment by the Time Lords, where they learn that the native Solonians are mutating into ant-like mutant creatures...
S9E16The Mutants (2)
Apr 15, 197225mKy 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.
S9E17The Mutants (3)
Apr 22, 197225mThe Doctor and Varan travel down to Solos to search for Jo and Ky but the Marshal orders his men to pursue them.
S9E18The Mutants (4)
Apr 29, 197225mThe Doctor and his friends are led to safety by Professor Sondergaard, who tries to help the Doctor translate the tablets.
S9E19The Mutants (5)
May 6, 197225mThe 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.
S9E20The Mutants (6)
May 13, 197225mThe 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.
S9E21The Time Monster (1)
May 20, 197225mUNIT are invited to observe a demonstration of the new TOMTIT machine, unaware its creator, Professor Thascales, is actually the Master.
S9E22The Time Monster (2)
May 27, 197225mThe 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.
S9E23The Time Monster (3)
Jun 3, 197225mThe 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.
S9E24The Time Monster (4)
Jun 10, 197225mThe Master prepares to travel back to Atlantis but the Doctor links his TARDIS to the Master's to try and stop him.
S9E25The Time Monster (5)
Jun 17, 197225mBoth 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.
S9E26The Time Monster (6)
Jun 24, 197225mThe 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.