Doctor Who — The Leisure Hive, Meglos, Full Circle, State of Decay, Warrior’s Gate, The Keeper of Traken, Logopolis

Posted on October 31, 2025 by Jedadiah Leland

The 18th season of Doctor Who started with the show getting a new producer, John Nathan-Turner. Depending on who you ask, Nathan-Turner was either the best or the worst thing that ever happened to Doctor Who. He pushed the series away from what he felt was the “silliness” of the previous season and, in doing so, he alienated both Tom Baker and Lalla Ward. (Ward was close friends with Douglas Adams, whom Nathan-Turner blamed for turning the show silly.) Nathan-Turner pushed for more serious stories and for better production values. He also hated K-9, which upset a lot of younger viewers. My personal feeling is that Nathan-Turner was not a good producer for Tom Baker’s Doctor but he was a great producer for Peter Davison’s interpretation of the character. As for the Colin Baker and Sylvester McCoy years, let’s keep things cheery and not go there.

By the end of the 18th season, Tom Baker, Lalla Ward, and John Leeson (the voice of K-9) had left the show. Completing my look back at Doctor Who, here are Tom Baker’s final serials.

The Leisure Hive (1980, directed by Lovett Bickford)

John Nathan-Turner hated K-9. If there was any doubt about that, consider that his first serial as the show’s producer opens with the Doctor and Romana on holiday Brighton. K-9, for some reason, rolls out to the ocean and explodes, taking him out of commission until the Doctor can rebuild him.

Personally, I would have been happy if this entire serial had just been Tom Baker and Lalla Ward on that beach in Brighton. Nathan-Turner may not have been a fan of the Doctor and Romana working together by Baker and Ward but viewers like me definitely disagreed. Alas, it is not to be. Romana wants a real holiday (Brighton, in a reminder of just how British Doctor Who really was, doesn’t count) so she and the Doctor and the remains of K-9 go to the leisure planet of Argolis. Unfortunately, Argolis is having financial problems and is at risk of being taken over by the Foamai. When the Doctor is framed for a strangulation murder that was committed with a scarf, he is forced to stand trial and become an experimental test subject.

It’s an okay start for Season 18, though Tom Baker, for the first time since taking over the role of the Doctor, was starting to look disinterested. John Nathan-Turner was eager to get away from the “silliness” of the previous season but, ironically, a story set on a leisure planet and featuring an intergalactic crime syndicate would have very much benefitted by Douglas Adams’s sense of humor.

Meglos (1980, directed by Terence Dudley)

The Doctor is asked to help broker a peace between two warring planets. Unfortunately, Meglos — a sentient cactus — traps the TARDIS in a time loop and then plots to thwart the peace.

When viewers think of this serial, they usually remember Meglos taking on the form of the Doctor and Tom Baker wearing makeup that made him look like a humanoid cactus. That’s because the plot is nothing special, though I do appreciate that we finally got to see what it’s like to be stuck in a time loop. Jacqueline Hill, who played Barbara when the serial first began, appears as Lexa, a high priestess of the planet Tigella.

Full Circle (1980, directed by Peter Grimwade)

Having been ordered to return Romana to Gallifrey, the Doctor instead materializes on a swampy plant that is located where Gallifrey should be. The TARDIS has slipped into E-Space, a small pocket universe. As for the planet that they’ve landed on, it’s inhabited by swamp monsters, a group a humans who live around a crashed starliner, and a mad scientist.

The idea of E-Space was an interesting one and Lalla Ward gives one of her strongest performances of the series, as Romana is briefly possessed in this episode. Unfortunately, this episode also introduced Adric (Matthew Waterhouse), an annoying child genius who became the Doctor’s newest companion. Adric was one of the least popular of John Nathan-Turner’s additions to Doctor Who. A few seasons later, Adric would be blown up while fighting the Cybermen and there would not be a dry eye in the house.

Tom Baker, unhappy with Nathan-Turner’s ideas and annoyed with Waterhouse decided to leave the role while filming this serial. Waterhouse reportedly cursed at Baker while filming one scene. They should have left the little punk behind just for doing that.

State of Decay (1980, directed by Peter Moffatt)

Still trapped in E-Space, The TARDIS materializes on a planet where the villagers live under the shadow of a dark tower. Ruled over by three cruel lords, Zargo, Camilla, and Aukon, the villagers are forced to regularly sacrifice their young to appease their rulers. The Doctor, Romana, K-9, and Adric investigate and discover that Zargo, Camilla, and Aukon are vampires! After being defeated by the Time Lords, the vampires retreated into E-Space, where they found a new planet to rule. Of course, that little tosser Adric wants to become a vampire. Why Romana and the Doctor didn’t leave Adric behind on the vampire planet, I’ll never understand.

Even the weaker seasons of Doctor Who usually featured at least one classic serial and, in the case of Season 18, it was State of Decay. For all of the justified criticisms of John Nathan-Turner time as producer, he did make an attempt to improve the show’s production design and it paid off with this atmospheric serial that paid homage to the great vampire films while also retaining its Doctor Who identity. Tom Baker seems to be rejuvenated by the clever script and he and Lalla Ward’s chemistry is allowed to shine. K-9 even gets to do something other than getting kicked around. State of Decay is a Doctor Who classic.

Warrior’s Gate (1981, directed by Paul Joyce and Graeme Haper)

Still trying to escape E-space, the TARDIS materializes on a similarly trapped spaceship that is run by Captain Rorvik (Clifford Rose). Learning that the ship is carrying an enslaved race known as the Tharils, the Doctor set them free. The Tharils help the Doctor reenter N-Space. However, Romana decides to stay behind to help the Tharils. The Doctor gives her K-9 and then leaves with Adric. The Doctor should have left Adric behind too.

This was Lalla Ward’s final episode and both she and Romana deserved a better send-off. Romana deciding to disobey the Time Lords, I can understand. Leaving the Doctor, even to help the Tharils, doesn’t seem like something Romana would have done. John Nathan-Turner finally got his wish, though. K-9 stayed with Romana. What are Romana and K-9 going to do in an alternative universe? They don’t even have a TARDIS.

The only highlight of this episode was Clifford Rose’s manic performance as Captain Rorvik. Otherwise, it was a forgettable send-off for two great companions.

The Keeper of Traken (1981, directed by John Black)

The Doctor and annoying Adric are summoned to the planet Traken, where the Master (Geoffrey Beevers) is attempting to capture a power source that will give him a new set of regenerations. (The Master doesn’t look as badly decayed here as he did during The Deadly Assassin.) With the help of the Keeper of Traken, Tremas (Anthony Ainley), and Tremas’s lovely daughter Nyssa (Sarah Sutton), the Doctor is able to stop the Master. However, as soon as the Doctor leaves, the Master emerges from a long clock and somehow merges with Tremas’s body, giving him a new set of regenerations.

Despite the presence of Adric, this is not a bad story. The Master makes his return and, in the final minutes of the serial, Anthony Ainley takes over the role. Ainley would play The Master for the rest of the original show’s run. While Ainley’s Master was always more cartoonishly evil than Roger Delgado’s, he still proved to be a worthy adversary for the Fourth, Fifth, Sixth, and Seventh Doctors.

Logopolis (1981, directed by Peter Grimwade)

This is it. This is final serial to feature Tom Baker as the Doctor. Things start with the Doctor materializing the Tardis around an actual police box in an effort to fix his chameleon circuit. The Master then materializes his TARDIS around the Doctor’s. It all fun and games until the universe starts to unravel and the Doctor sacrifices his life while literally holding space and time together. Along the way, the Doctor gets two new companions, Nyssa (who has been traveling with the Master under the impression that he’s her father) and Teagan (Janet Fielding), an outspoken Australian flight attendant who entered the TARDIS thinking that it was a police call box.

Whatever else you might want to say about season 18, it gave Tom Baker a fitting send-off. After seven years of saving civilizations and planets, the Fourth Doctor finally saved the entire universe. Perhaps knowing how traumatized viewers would be to see the Fourth Doctor die, this episode featured Peter Davison (familiar to viewers as Tristan Sebring from All Creatures Great And Small) as the Watcher, a mysterious figure who merged with the Doctor at the end of the serial and turned out to be his Fifth Incarnation.

I had hoped to discuss some of the Fifth Doctor’s adventures this October but time has caught up with me. (It’s a pity because Peter Davison more than made the role of the Doctor his own and several of his serials — Kinda, Snakedance, and Enlightenment to name just three — are worthy of being considered classics.) For me, as someone who to watch Tom Baker’s Doctor on PBS while growing up, this does seem like the right place to stop.

For now.

Doctor Who — The Ark In Space, The Sontaran Experiment, Genesis of the Daleks, Revenge of the Cybermen, Terror of the Zygons

Posted on October 12, 2025 by Jedadiah Leland

The 12th season of Doctor Who got off to a shaky start with Robot, a serial that was ultimately distinguished only by the introduction of Tom Baker as the Fourth Doctor. The best thing about Robot is that it ended with The Fourth Doctor peeking out of the TARDIS and inviting Sarah Jane Smith (Elisabeth Sladen) and Harry Sullivan (Ian Marter) to join him on his further adventures. By inviting them, he was inviting the audience as well.

The remaining episodes of the 12th season not only established Tom Baker as the Doctor but it also reestablished Doctor Who as being a show about an alien who could travel through time and space. After several seasons of The Third Doctor largely staying on Earth and in the present, the 12th Season reminded everyone that the Doctor could turn up anywhere.

The Ark In Space (1975, directed by Rodney Bennett)

The first place that the Doctor takes Sarah and Harry is to Nerva, a space station that floating above the Earth. The time is 10,000 years into the future. Forced to flee the Earth due to solar flares, the crew of the space station has spent a millennia in suspended animation. During that time, the space station has been invaded by the Wirm, a space insect that has laid its eggs in some of the crewmen. When everyone is revived, the infected crewmen are transformed into creatures that are half-human and half-insect.

The Ark in Space is a classic space opera. When I was a kid and our PBS station first started to broadcast Doctor Who, they started with a four-hour bloc, which included Robot, The Ark In Space, and The Sontaran Experiment. After Robot, with its basic plot and bad special effects, it was a relief to then see The Ark In Space, a serial that lived up to all of the Doctor Who hype. Not only did Tom Baker fully step into the role of the eccentric Fourth Doctor but this serial also featured Elisabeth Sladen and Ian Marter in active roles as well. This serial said that the days of the passive companion were (temporarily) over.

The plot of The Ark in Space does have some similarities to Alien, which came out for years later. I think that’s probably just a coincidence.

The Sontaran Experiment (1975, directed by Rodney Bennett)

Having defeated the Wirm and saved the remaining colonists on the Ark, The Doctor, Harry, and Sarah transport down to Earth to repair a receiver terminal. They discover that the Earth is not as deserted as they assumed. A group of human astronauts returned to the planet earlier but they were captured by Styre (Kevin Lindsay), a Sontaran who has been sent to Earth to prepare it for an invasion so that the Sontarans can use the planet as an outpost in their never ending war with the Rutans.

This serial was only two episodes long but The Sontarans were always good villains. They’re relentless, destructive, and very, very stupid. This story featured one of Tom Baker’s best moments, when he convinced Styre to throw away his weapon because it made him look weak. Styre fell for it because Sontarans will fall for anything.

Genesis of the Daleks (1975, directed by David Maloney)

This is it. This is the first true classic of the Tom Baker era and also the best of the classic Dalek stories. Terry Nation was invited back to Doctor Who to write about his most famous creations and he created one of the show’s most enduring villains in the process.

A Time Lord appears to the Doctor and his companions and tells them that they need The Doctor to change history. (This goes against all Time Lord law, which is why they gave the job to a known renegade like The Doctor.) The Daleks have been determined to be too much of a threat. The Doctor is to go back to the time of their creation and “interfere.”

The Doctor, Harry, and Sarah Jane find themselves on Skaro, where the war between the Thals and the Kaleds have left the planet ravaged and inhospitable. The Thals and the Kaleds each live in a domed city and spend their days shooting missiles at each other. Terry Nation often said that the Daleks were meant to be a stand-in for the Nazis and he makes that clear in this episode with the Kaleds wearing SS-style uniforms and spouting theories about racial superiority.

In this episode, Nation introduces Davros (Michael Wisher), the horribly scarred and crippled scientist who will ultimately be responsible for transforming the Kaleds into the Daleks. (The Kaleds who don’t want to be Daleks are wiped out by those who do.) Davros would appear in every subsequent Dalek episode of classic era Doctor Who and his effectiveness would be diluted by repetition. In his first appearance, though, he immediately establishes himself as a frightening and truly evil Doctor Who villain. If their first appearance suggested that the Daleks retreated into the shells for survival in their nuclear-ravaged world, this episode shows that it more about Davros wanting to play God.

A six-episode serial, Genesis of the Daleks more than justifies its epic length. The heart of the serial is a moment when the Doctor, on the verge of wiping out the Daleks forever, stops to wonder if he has the right to do so. This was a key moment in the development of The Fourth Doctor. The Fourth Doctor may have been an eccentric but he was an eccentric with a conscience who realized that even the worst creatures deserved a chance at redemption. In the end, The Doctor does not destroy the Daleks, though he does set back their evolution by an undetermined number of years. As the Doctor explains it, good will always rise up to counter the evil of the Daleks.

This episode features the apparent destruction of Davros but you can never keep a good villain down. Both Davros and his creations would return.

Revenge of the Cybermen (1975, directed by Michael Briant)

After a classic Dalek story, I guess it was inevitable that Doctor Who would feature a Cyberman episode.

Following the events of Genesis of the Daleks, the Time Lords return The Doctor, Sarah Jane, and Harry to the Nerva space station. They arrive several centuries before the events in The Ark In Space. Without the TARDIS (it’s traveling back through time to meet them), The Doctor and his companions discover that the majority of Nerva’s crew is dead and that the remaining members are using the station as a space beacon to warn people about a drifting planetoid. The planetoid is made of gold and the Cybermen show up at Nerva because, being uniquely vulnerable to gold dust, they want to destroy it.

If Genesis of the Daleks re-imagined the Daleks, Attack of the Cybermen proves to be just a typical Cybermen story and a disappointing one. The best thing about this episode is that it gave Tom Baker a chance to once again prove his Doctor bonafides by defeating a classic Doctor Who villain.

Terror of the Zygons (1975, directed by Douglas Camfield)

Terror of the Zygons was the first seral of the thirteenth season but, since it’s also Harry Sullivan’s final appearance as a regular member of the TARDIS crew (though he would return in a later episode for a one-off appearance), it still feels like a twelfth season episode.

Having been reunited with the TARDIS, the Doctor, Sarah Jane, and Harry return to present-day Earth. The Brigadier (Nicholas Courtney) and UNIT are investigating attacks on oil rigs by a giant sea creature. Sea Devils, again? No, this time it’s the Zygons, who are far less sympathetic.

This was a typical UNIT story, the type of thing that Jon Pertwee did regularly. Tom Baker’s more mischievous version of the Doctor feels slightly out-of-place with UNIT but it is still a pleasure to see Nicholas Courtney and John Levene again and this episode finally explains what everyone has been seeing in Loch Ness over the years. This episode ends with Harry returning to UNIT while Sarah Jane and the Doctor returned the TARDIS. Harry Sullivan was a strong character and producer Philip Hinchcliffe later said it was a mistake to write him out of the series.

Ian Marter, who played Harry Sullivan, continued to be associated with Doctor Who as one of the better writers of the Doctor Who novelizations. He also wrote two stand-alone novels featuring Harry’s adventures without the Doctor. Ian Marter died of a heart attack when he was just 42 but Harry Sullivan lived on, frequently being mentioned in both the classic series and the revival.

That’s it for the 12th season, the season that truly made Tom Baker the Doctor and which was one of the best of the classic series. As these were the first episodes of Doctor Who that I ever saw, I have a lot of nostalgia for them. The Ark In Space, The Sonatarn Experiment, Genesis of the Daleks, and even Terror of the Zygons still hold up well to this day.