"Doctor Who" The Sea of Death (TV Episode 1964) Poster

(TV Series)

(1964)

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8/10
Fast-Paced "Quest" story
profh-122 December 2008
THE KEYS OF MARINUS, from the first time I saw it in the mid-80's, has been my favorite story from the 1st season of DOCTOR WHO. Terry Nation has shown he can be inspired (when he's not writing about killer trashcans) and I think he outdid himself here.

The Doctor & co. find themselves trapped on an island containing a machine that can affect the will-power and behavior of an entire planet, and are coerced into retrieving several electronic micro-"keys" designed to activate it, before a power-mad group known as The Voord can get their hands on it. And so, in quick succession, using "travel-dials" worn on the wrist (rather similar to ones supplied by The Time Lords in GENESIS OF THE DALEKS many years later), they find themselves in a city overcome by illusion-inducing aliens; a botanist working in a temple surrounded by menacing plant-life (shades of DAY OF THE TRIFIDS and the DW story SEEDS OF DOOM); a snowbound trapper with amorous intentions toward Barbara and a cave filled with frozen warriors who come to life (in a scene that reminds me of on in the much-later story WARRIOR'S GATE); and a murder mystery with Ian as the suspect, and The Doctor acting as defense attorney! The story structure is rather similar to "The Key To Time" (season 16), except instead of 6 connected stories, this one takes place over only 6 episodes! The more I watched the William Hartnell stories, the more I came to realize that many great ideas and innovations seen in later seasons all had their origins in his era. And, while many of the longer stories in the early years tended to be slow-moving, this one nearly leaves you gasping for breath.

Several familiar faces guest-star over the course of the serial, including George Colouris (TARZAN AND THE LOST SAFARI, ARABESQUE), as Arbitan, the inventor of the behavior-modifying machine; Francis De Wolff (HOUND OF THE BASKERVILLES, FROM Russia WITH LOVE) as the brutal hermit; Robin Phillips (TALES FROM THE CRYPT) as Altos, who befriends the heroes as they help him in his quest; Donald Pickering (who returned for THE FACELESS ONES and much later, TIME AND THE RANI, but whom I most remember for a RETURN OF THE SAINT episode, "The Arrangement", as the misguided politician married to the mentally-unstable Sarah Douglas) as the prosecuting attorney with an ulterior motive; and Fiona Walker (I CLAUDIUS) as the devious wife of a security guard. Watching the story again recently, it slipped right by me that Walker had later returned in a much more prominent (and over-the-top) performance in the story SILVER NEMESIS!

Unlike many later seasons where characters got good introductory stories and then little good writing after, the characters during Verity Lambert's run as Producer (seasons 1-2) tended to grow and develop the longer the show went on. So it is, in KEYS I really got to like the entire regular cast, whose characters had all grown much more likable and closer together by this point. I also got a charge out of seeing The Doctor play defense attorney. I'm reminded that late in the run of DARK SHADOWS, during the "1840" sequence, Barnarbas Collins took a stab at the same situation, but to much lesser effect. (He LOST, and his client was only saved by outside circumstances.)

KEYS... may be the closest WHO ever got to the feel of the old FLASH GORDON serials.
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6/10
The Sea of Death
wetmars24 August 2020
Warning: Spoilers
The TARDIS arrives on the planet Marinus on an island of glass surrounded by a sea of acid. The travellers are forced by the elderly Arbitan to retrieve four of the five operating keys to a machine called the Conscience of Marinus, of which he is the keeper. These have been hidden in different locations around the planet to prevent them falling into the hands of the evil Yartek and his Voord warriors, who plan to seize the machine and use its originally benevolent mind-influencing power for their own sinister purposes.

Review of six parts -

Yeah, I'm sorry. This episode was just very hard to follow, it just felt weak, boring, and handled poorly.
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8/10
The Sea of Death
guswhovian12 May 2020
The TARDIS lands on an island surrounded by a sea of acid. The travelers soon meet an old man named Arbitan, who forces them to set out on a quest to find a set of keys to a machine called the Conscience of Marinus.

The Keys of Marinus has always been a bit of a guilty pleasure for me. Terry Nation crafts a great adventure story, and I have to give Verity Lambert props for making such an ambitious story.

Raymond Cusick's set design is fantastic, and Norman Kay's incidental music is excellent. There's some quite good special effects as well.

Terry Nation also knows how to write the regulars very well; I particularly liked when Barbara asked the Doctor why the TARDIS scanner wasn't in color!
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The summary of this story is that of Keys of Marinus though Keys comes later
HobbitHole10 October 2006
Warning: Spoilers
Not sure why the difference between title and summary Keys to Marinus was one of the best William Hartnell stories that survived and was transferred to US format video.

It is inventive in the difficulties they must face and in the very planet itself there are many mysteries about it's properties and how the doctor and his friends can ever get off of Marinus.

They meet a couple friends along the way as well as some deadly enemies.

One of the more science fiction stories of the first doctor who probably had more historical and educational stories than any of the subsequent doctors who replaced him.
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6/10
The Show Does Tolkien But Has Too Much Ambition
Theo Robertson9 August 2013
Warning: Spoilers
The Tardis lands on an island on the planet of Marinus . The time travellers meet Arbitan who is the keeper of the Conscience Of Marinus a sophisticated computer that controls the planet . Arbitan tells the time travellers that the Voord a race from outside the computers influence are tyring to infiltrate the island and the only way they can be controlled is if the computer is upgraded but this is not possible without the five keys scattered across the planet . The Tardis crew agree to find the keys but shortly after they depart the Voord arrive and murder Arbitan

Two things are noticeable watching this story today . One is that it seems directly influenced by Tolkien and the other is how painfully over ambitious it is . LORD OF THE RINGS wasn't the mega success it was known for until the hippy era so congratulations to the underatted Terry Nation for making a Tolkieinesque quest story before it became fashionable . However he might have to lose a mark down to having the ambition that Peter Jackson has but having the budget of 37 pence . Always a bad idea to write mega million dollar screenplays when you're financed by the BBC

In his defence Nation had to write the script in a hurry to replace a script by Malcolm Hulke called The Hidden Planet . One however can't help thinking why Verity Lambert and script editor David Whittaker didn't insist on something a little bit more low key , a sort of More Low Keys of Marinus ( Groan ) . The problem is the episodic nature means you're going to have to build different sets and costumes for each episode you probably won't have the budget to do many or any of them justice , a fact often reflected on screen with laughable model work . The entire story also fails to hang together as a coherent story if the episodes are watched all in one go

Not to be too negative it's always good to watch this unique era of the show as the companions Ian and Barbara who forever remain very human characters that we can believe take centre stage . The other positive is that being so episodic if you don't like one episode then a entirely different genre type episode will be around the corner very soon . It's also interesting to see Nation come up with an idea of an Island being surrounded by highly corrosive acid which is a plot he used later in the 1978 BLAKES 7 episode Orac . It's also an aquatic planet which is no doubt why it's called Marinus
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7/10
Around Planet Marinus In Six Episodes
timdalton0073 February 2020
Warning: Spoilers
(Note: A review of the serial The Keys of Marinus)

When one sees the name of writer Terry Nation on a Doctor Who story, one might assume Daleks are involved. More so, perhaps, if the designer Raymond Cusick is included in the same serial's credits. But, surprise, no Daleks feature in The Keys of Marinus, Nation's second outing for Who and something of a replacement when another story fell through. And what a story it turned out to be.

The Keys of Marinus is the first quest narrative in the show's history. By that, I mean that the TARDIS crew finds themselves given a mission to perform rather than getting themselves into trouble like, say, the earlier Dalek tale. In this case, to track down the five keys that control a powerful device known as the Conscience of Marinus. To do so, they must travel to different locations around the planet. They'll go from cities to jungles and icy mountains to do so and get back to their travels.

The episodic nature of Nation's scripts is part of what makes this story so compelling. Indeed, one might see a tribute to Jules Verne's Around The World In 80 Days and the 1956 film version with its all-star cast. Both feature planet-hopping narratives, varieties in locations, our protagonists becoming separated, and characters picked up along the way who join our main characters in their journey around the world. Ian's murder accusation and the delay in their quest late in the story share a point of similarity with Verne's Phileas Fogg, who finds himself arrested as an alleged bank robber late in Around's narrative. Even the appearance of George Coulouris as Arbitan (which Clayton Hickman calls Doctor Who's brush with Citizen Kane on the audio commentary) imitates the cameos of the later film version. If Doctor Who, in its earliest years, is paying tribute to the serial fiction that came before it, than Marinus sees Nation paying tribute to Verne's tale.

Nor is Verne the only source on display. One too might see echoes of The Day of the Triffids in the jungle episode with plants moving on their own, killing and destroying. As mentioned above, the latter parts of the serial feature a mini-courtroom drama, with the Doctor playing the role of Perry Mason to save Ian from a system that assumes his guilt rather than innocence. If variety is the spice of life, then this story is very rich indeed!

It's also full of ambition that is a hallmark of this era. There's a new set of locations practically every episode, not to mention changes in casts and costumes. The second episode, set in a city that isn't quite what it seems, perhaps speaks most to those efforts with director John Gorrie and designer Cusick doing everything they can to get the maximum effect. Fans often point to The Web Planet the following year as early Who at its most ambitious and, while there's no disputing the ambitions there, there's an argument to be made that this story is even more so. After all, it's trying to create an entire planet in the confines of the BBC's oldest studio.

Does it always work? Not quite, as one can see where photo blowups and photo blow-ups get used in the first episode, for example. Some of the dialogue, never a Nation strong suit, is clunky at times, especially where exposition gets involved. More than that, Susan's characterization is all over the place, inconsistent from scene to scene, let alone episode to episode. All of which serve to undermine the story slightly.

At the end of the day, it can be easier to forgive over-ambition where there's a good story to be told. And there is plenty to like about the Keys of Marinus from its location-hoping, genre-changing narrative and the efforts made to bring it to life. It may not always succeed, but by Jove, it tries. In the end, it's an overlooked tale from the opening days of the show and one that deserves another look.
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6/10
'The Keys of Marinus' : a disjointed and disappointing first season six-parter*
jamesrupert20144 January 2024
The Doctor (William Hartnell), along with his granddaughter Susan (Carole Ann Ford) and companions Ian and Barbara (William Russell and Jacqueline Hill) materialise on a strange island dominated by an immense tower that houses a computer capable of controlling the actions of everyone on the planet. By holding the TARDIS hostage in a force-field, the sole caretaker of the machine blackmails the time-travellers into combing the planet for the five missing electronic keys needed to make the computer active. Terry Nation's highly contrived six-part premise serves to launch five separate 'adventures' among the planet's various cultures, none of which are particularly interesting or well-done. The script suffers from the 'selective amnesia' that is common in sci-fi/fantasy series: no matter how strange preceding events were, characters are constantly being told that they are 'just imagining' some current strange event. There is no continuity between the cultures visited, each is simply devised to set up a different kind of puzzle to be solved before finding the 'key', the 'teleportation bracelets' that allow the searchers to instantly travel around the planet are conveniently unused at times, there are a number of errors in the story-line (for example, Barbara teleports moments before the others yet seems to have arrived days earlier), and the lengthy courtroom sequence in which Ian is tried for murder resorts to the simplistic gimmick of surprised characters starting to blurt out their guilt before catching themselves mid-sentence. Hartnell was taking a break from production, so the Doctor is absent from three of the 'adventures' and, although the companions do their best to carry the show (despite Susan coming across as hapless and easily terrified), his presence is missed. The sets are imaginative at times but a bit cheap looking and clearly the show's budget did not extend to re-takes as Hartnell noticeably stumbles over lines several times. Apparently the series was a last minute substitution, which may in part account for its disjointed structure and seemingly rushed production. All in all, a weak entry in the First Doctor's canon (especially when compared to 'The Dead Planet' or 'The Tenth Planet'). * score and comments pertain to whole series.
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9/10
Very ambitious, and successful opening.
Sleepin_Dragon26 August 2018
The keys of Marinus is a favourite, for many reasons, it's so varied, so bold, it showed that even in these early years, the people behind it had big ambitions.

It's a mysterious start, with the TARDIS landed on a strange alien world, full of acid and arrange crafts, it's wonderfully imaginative. The sets are great, the Voord look pretty decent too.

One of Hartnell's best slip ups, when he turns to Ian and says 'if you'd have been wearing your shoes, you could have learnt her hers.' it's the look on the faces of William Russell and Jacqueline Hill that makes it so wonderful, Hartnell just carried on regardless, brilliant. Ever the professional, I loved Hartnell in these early years, so cantankerous.

Great start. 9/10
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6/10
Needed more time and more money
JamesHitchcock17 November 2022
The plot of "The Keys of Marinus" is too complex to be set out here in any detail. The basic idea is that the First Doctor, his granddaughter Susan and her teachers Ian and Barbara land on the planet Marinus and embark on a quest for the five keys to the Conscience of Marinus, a super-computer responsible for maintaining law and order on the planet. There is a striking similarity to a much later story arc in the series. The entire 16th season is essentially one long serial in which the Fourth Doctor and his companion Romana are charged by the White Guardian (for which read God, the being responsible for maintaining order across the universe) with the task of retrieving the six hidden segments of the Key to Time, an artefact which would give its possessor immense power.

The 16th season comprised six serials and a total of 26 episodes. "The Keys of Marinus" is a single serial comprising only six episodes, in the course of which the Doctor and his companions visit two cities, a jungle, and an icy wasteland in a series of mini-adventures, most of which do not have much connection with the others apart from the fact that one of the keys is retrieved in each. Only towards the end, when Ian is framed for murder and put on trial for his life, with the Doctor as his defence counsel, does the serial take on greater coherence. I mention "the Doctor", but in fact does not appear in the third and fourth episodes. An attempt was made to provide an in-series explanation, but the real reason was that William Hartnell was on holiday. The programme, however, seemed to get on perfectly well without him, strengthening my belief that during this part of the series' history the real heroes were Ian and Barbara rather than the Doctor.

"Doctor Who" episodes at this time were only around 25 minutes long, which was not really long enough to develop the various "mini-adventures" to their full advantage. (I always associated 25-minute and 50-minute television slots, as opposed to 30-minute and 60-minute ones, with the BBC's rivals at ITV, who had to make room for commercial breaks, but "Doctor Who" may have been made with one eye on sales to foreign commercial stations). The parts of the story set in the city of Morphoton and in the icy wastes could, with advantage, have been developed more fully had the serial been extended from six to, say, eight episodes. There is some interesting material here, but the producers allowed themselves insufficient time in which to turn that material into a really interesting story. The serial might also have been more visually attractive, with a greater sense of the culture of an alien world, had the BBC allowed the producers to spend more money; the programme's budget was always notoriously parsimonious. 6/10.
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9/10
The Keys of Marinus: Part 1 - Various locations and adventures varying in quality
A_Kind_Of_CineMagic5 July 2014
Review for all 6 episodes:

This story from Dalek creator Terry Nation begins with the episode the Sea of Death. It is in my view an excellent opening episode. It features an intriguing, well written plot with the TARDIS crew searching a strange planet. The design of the planet and its Voord creatures is very good indeed, ideas such as seas of acid and beaches of glass are cleverly used to create a truly interesting and exciting alien planet. The Voord look good, there is menace and suspense, an excellent alien landscape and building design, a proficient script and quality acting all round which gives a 9/10 opening episode to the story.

However, whilst still decent fun, episodes 2-4 are a little disappointing in comparison to the opening episode. The idea of the story means each episode of the first 5 takes place in a different location with a self contained adventure searching for the hidden Keys of Marinus. This really would be a great idea for a story but is a pity to move on to other adventures when the original world in the opening episode is so well designed.

Episode 2 has a hugely different location and features the crew suffering mind control. This second episode is very good in most aspects but a few less impressive aspects such as a minor plot hole cause its quality to suffer. This plot hole is that Barbara is meant to travel, via a kind of teleportation device, just a minute before the rest of the travellers and yet in that minute before they join her numerous things are meant to have happened.

Episodes 3 and 4 are not as interesting or well executed as the first part either with episode 4 the weakest. Episodes 5 and 6 return to a higher standard and are like a murder mystery. Very good but they still are not a match for the top quality first part.

My Ratings: Episode 1 - 9/10, Episodes 2 & 3 - 7.5/10, Episode 4 - 7/10, Episode 5 - 8/10, Episode 6 - 9/10

Overall - 8/10.
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The Keys of Marinus
ametaphysicalshark8 July 2008
Rather generously credited by some fans as a sprawling and ambitious story that was deliberately varied and took place in numerous different locations for creative purposes. Fact is that the story had to be written as fast as possible and it was decided that making it a collection of largely self-contained episodes would make it easier to write.

Terry Nation was a man with a multitude of fantastic and wonderful ideas but let's face it, with the odd exception here and there, he was never really a polished scriptwriter, mostly producing watchable but unremarkable work that required plenty of editorial work from the script editors. "The Keys of Marinus" starts out as exactly this sort of script, hits a peak with the fabulously thrilling third episode, essentially a retread of pulp adventure serials but done wonderfully well, stays fairly strong in the same vein with the fourth episode then bizarrely turns into an awful combination of the whodunit and courtroom thriller genres, worth seeing only for the Doctor's first and last appearance as a clever lawyer (!), and ends with an episode much like the first two. It sure is sprawling but in this case I'm afraid it's just not a good sort of sprawl.

The story in general doesn't achieve any sort of real flow, partly due to Nation's script but also in part due to the static direction by John Gorrie. Of course one cannot expect fluid and mobile direction and editing from the rather clunky and massive 60's video cameras Who was shot on at this point, but once you see what Warris Hussein did with "An Unearthly Child" you come to expect similar quality from other directors, or at least something somewhere near that level.

"The Keys of Marinus" is wonderful, spectacular fun in places. The whole feel of the planet is sprawling and very different to what you usually find in Doctor Who stories, but the vignette style storytelling doesn't quite work. It's like the Key to Time season (which I'm not too fond of anyway) condensed to six episodes rather than stories. All in all this story is watchable and mostly entertaining, but it is a lesser story than the preceding season one adventures.

Episode 1: 6/10, Episode 2: 6/10, Episode 3: 9/10, Episode 4: 7/10, Episode 5: 4/10, Episode 6: 6/10.

Average: 6.33/10
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