8.1/10747 votes#1 - Terror of the Zygons (1)
Season 13 Episode 1 - Aired 8/30/1975
Scotland, the near future. Something is smashing oil rigs off the Scottish coast, and UNIT have been called in to investigate. The Brigadier summons the Doctor to Earth to help in the investigation, but it soon becomes clear some kind of alien presence is at work...
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.1/10659 votes#2 - Terror of the Zygons (2)
Season 13 Episode 2 - Aired 9/6/1975
The Zygon traps the Doctor and Sarah Jane in a decompression chamber while Harry is taken to the aliens' underwater ship.
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.1/10651 votes#3 - Terror of the Zygons (3)
Season 13 Episode 3 - Aired 9/13/1975
The Doctor and the Brigadier begin to realise who the Zygon imposters among them are while Sarah Jane discovers a secret tunnel to the underwater ship.
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.0/10658 votes#4 - Terror of the Zygons (4)
Season 13 Episode 4 - Aired 9/20/1975
UNIT attempt to track down the Zygon ship while Broton prepares to have the Skarasen attack London.
Director: Douglas Camfield
Writer: Robert Banks Stewart
7.4/10641 votes#5 - Planet of Evil (1)
Season 13 Episode 5 - Aired 9/27/1975
The Doctor and Sarah answer a distress call and find themselves on Zeta Minor, the last planet of the known universe, where a Morestran expedition has gone missing.
Director: David Maloney
Writer: Louis Marks
7.3/10565 votes#6 - Planet of Evil (2)
Season 13 Episode 6 - Aired 10/4/1975
The Doctor realises that Zeta Minor lies on the boundary between the universes of matter and anti-matter and something on the planet won't let the Morestrans leave.
Director: David Maloney
Writer: Louis Marks
7.3/10559 votes#7 - Planet of Evil (3)
Season 13 Episode 7 - Aired 10/11/1975
The Doctor makes a deal with the Anti-Matter Beast to return all the anti-matter to the planet but Sorenson is determined to continue his research.
Director: David Maloney
Writer: Louis Marks
7.2/10557 votes#8 - Planet of Evil (4)
Season 13 Episode 8 - Aired 10/18/1975
The Doctor tries to convince Sorenson to sacrifice himself for the rest of the crew but Salamar's attempt to deal with the situation causes their problems to multiply.
Director: David Maloney
Writer: Louis Marks
8.4/10963 votes#9 - Pyramids of Mars (1)
Season 13 Episode 9 - Aired 10/25/1975
The Doctor and Sarah are drawn off course and, instead of UNIT HQ, they arrive on the same site in 1911.
Director: Paddy Russell
Writer: Robert Holmes, Lewis Greifer
8.3/10822 votes#10 - Pyramids of Mars (2)
Season 13 Episode 10 - Aired 11/1/1975
The Doctor, Sarah and Laurence try to find a way to sever Sutekh's link to the mummies while poacher Ernie Clements finds the priory surrounded by a forcefield.
Director: Paddy Russell
Writer: Robert Holmes, Lewis Greifer
8.3/10809 votes#11 - Pyramids of Mars (3)
Season 13 Episode 11 - Aired 11/8/1975
The Doctor and Sarah try to destroy Sutekh's rocket but the Osiran's mental powers prove too great for them.
Director: Paddy Russell
Writer: Robert Holmes, Lewis Greifer
8.5/10835 votes#12 - Pyramids of Mars (4)
Season 13 Episode 12 - Aired 11/15/1975
Sutekh forces the Doctor to transport Scarman and a mummy to Mars, where the Doctor and Sarah try to stop them destroying the Eye of Horus.
Director: Paddy Russell
Writer: Robert Holmes, Lewis Greifer
7.5/10603 votes#13 - The Android Invasion (1)
Season 13 Episode 13 - Aired 11/22/1975
The Doctor and Sarah return to Earth in the present day to find a strangely deserted village and woods stalked by white-clad figures.
Director: Barry Letts
Writer: Terry Nation
7.4/10533 votes#14 - The Android Invasion (2)
Season 13 Episode 14 - Aired 11/29/1975
The Doctor suspects Crayford brought something to Earth in his rocket, as he and Sarah find themselves hunted by UNIT.
Director: Barry Letts
Writer: Terry Nation
7.2/10532 votes#15 - The Android Invasion (3)
Season 13 Episode 15 - Aired 12/6/1975
The Doctor is captured by Styggron and left to die in the destruction of the fake village but Sarah escapes from the disorientation chamber to try and rescue him.
Director: Barry Letts
Writer: Terry Nation
7.1/10532 votes#16 - The Android Invasion (4)
Season 13 Episode 16 - Aired 12/13/1975
The Doctor and Sarah reach Earth and try to warn the research centre about the Kraal invasion before Styggron unleashes his virus.
Director: Barry Letts
Writer: Terry Nation
8.2/10704 votes#17 - The Brain of Morbius (1)
Season 13 Episode 17 - Aired 1/3/1976
The storm-lashed planet Karn. Near a graveyard of crashed starships, the demented surgeon Solon hides in his castle, the last acolyte of the Time Lord despot Morbius. He only needs one final item to make his master live again... and then the Doctor and Sarah arrive...
Director: Christopher Barry
Writer: Robert Holmes, Terrance Dicks
8.2/10615 votes#18 - The Brain of Morbius (2)
Season 13 Episode 18 - Aired 1/10/1976
The Doctor is captured by the Sisterhood, and Sarah Jane is blinded freeing him. The Doctor has no choice but to go back for a cure, unaware that he is leaving Sarah Jane in the hands of a treacherous Dr. Solon and the renegade Time Lord Morbius.
Director: Christopher Barry
Writer: Robert Holmes, Terrance Dicks
8.2/10614 votes#19 - The Brain of Morbius (3)
Season 13 Episode 19 - Aired 1/17/1976
While the Doctor goes to confront the Sisterhood to seek a cure for Sarah Jane's blindness, Solon realizes that he must transfer Morbius' brain into a new body before it is too late.
Director: Christopher Barry
Writer: Robert Holmes, Terrance Dicks
8.2/10635 votes#20 - The Brain of Morbius (4)
Season 13 Episode 20 - Aired 1/24/1976
Morbius lives once more, but as a rampaging beast. The Doctor is forced to ally with Dr. Solon to bring him to heel, but the two disagree about what should happen to Morbius.
Director: Christopher Barry
Writer: Robert Holmes, Terrance Dicks
8.5/10714 votes#21 - The Seeds of Doom (1)
Season 13 Episode 21 - Aired 1/31/1976
The Antarctic, the near future. A strange seed-pod is unearthed from 20-thousand-year-old ice. The Doctor and Sarah go to investigate, but are too late to prevent the pod infecting a scientist and unleashing a threat to all animal life on Earth...
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.5/10599 votes#22 - The Seeds of Doom (2)
Season 13 Episode 22 - Aired 2/7/1976
Two employees of the millionaire Harrison Chase arrive at the Antarctic base, and they will stop at nothing to get hold of the second seed-pod.
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.4/10595 votes#23 - The Seeds of Doom (3)
Season 13 Episode 23 - Aired 2/14/1976
The Doctor and Sarah Jane return to England after their Antarctic ordeal and Chase tries to eliminate them, but they escape and track him down at his estate, where he is preparing to open the Krynoid pod.
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.4/10586 votes#24 - The Seeds of Doom (4)
Season 13 Episode 24 - Aired 2/21/1976
The Doctor is captured by Chase, who plans to breed the stolen Krynoid pod. He is placed in an automated compost hopper and only Sarah Jane can save him... but will she make it before the Krynoid grows to fruition ?
Director: Douglas Camfield
Writer: Robert Banks Stewart
8.4/10590 votes#25 - The Seeds of Doom (5)
Season 13 Episode 25 - Aired 2/28/1976
The Krynoid grows to a monstrous size and traps the Doctor and the others in a cottage. The creature demands they turn over the Doctor, while Chase seeks to make an alliance with the alien vegetation.
Director: Douglas Camfield
Writer: Robert Banks Stewart
The Best Episodes of Doctor Who Season 13
Every episode of Doctor Who Season 13 ranked from best to worst. Discover the Best Episodes of Doctor Who Season 13!
The adventures of The Doctor, a time-traveling humanoid alien known as a Time Lord. He explores the universe in his TARDIS, a sentient time-traveling spaceship....
Genres:DramaAction & AdventureSci-Fi & Fantasy
Season 13 Ratings Summary
"Terror of the Zygons (1)" is the best rated episode of "Doctor Who" season 13. It scored 8.1/10 based on 747 votes. Directed by Douglas Camfield and written by Robert Banks Stewart, it aired on 8/30/1975. This episode is rated 0.0 points higher than the second-best, "Terror of the Zygons (2)".