Captain Scarlet And The Mysterons

"Lunarville 7," is the twelfth instalment of Captain Scarlet and the Mysterons, the fifteenth to be produced, and the first of the three instalments that comprise "The Lunarville Trilogy." In it, Captain Scarlet, Captain Blue, and Lieutenant Green are dispatched to Earth's Moon to investigate unauthorised construction taking place in the Humboldt Sea.


A Surprising Announcement[]

In distant space on the Moon, the Lunar Controller, effective leader of the Moon, from Lunarville 7, makes an announcement of how the planet has given him and the people the freedom to live in safety and comfort. He goes on to say that they will not support Earth against the Mysterons and that he has been able to communicate with them and come to a peace settlement, declaring them to be independent of Earth. The Controller turns to his personal assistant, Orson, and asks him how the transmission to Earth went. After Orson's answer, he asks the same question of the computer, called S.I.D. (short for Speech Intelligence Decoder), who gives him a detailed reading of his success.

Aboard Cloudbase, Colonel White holds a meeting with Captain Scarlet, Captain Blue, and Lieutenant Green about the Lunar Controller's transmission. Lieutenant Green reads about how the Controller said he was able to contact the Mysterons and come to a settlement; this point interests the Colonel, who wants to know how this is possible. But all three are unsure of this, and Colonel White sends them to the moon to investigate.

The Mysterons then send another message.

"We have no quarrel with the moon and we accept their offer of friendship," it says. "But we will continue to take our revenge against the Earth. We will be avenged."

Mission On The Moon[]

Later, a rocket containing Captain Scarlet, Captain Blue, and Lieutenant Green prepares to launch. Colonel White sends some final instructions, as the Lunar Controller has accepted their visit--but has banned radios and other equipment. He says that there are signs of unauthorised construction going on in the Humboldt "Sea" on the far side of the moon and that they have to investigate it. These instructions are so extremely important that the fate of the world could be in their hands.

On Lunarville 7, S.I.D. announces that the Spectrum personnel will be arriving soon. The Lunar Controller tells Orson to go and meet them. Both men agree that this, their first visit to the moon, will be their last.

The Spectrum agents arrive at the airlock in the main control room. There, they meet Orson, who introduces himself and gives them each a recognition disc to wear before taking them to see the Controller. The Controller cheerfully greets them and introduces S.I.D., their control computer, who is programmed to understand and obey verbal instructions and can answer with his own simulated voice. S.I.D. greets each one of the Spectrum agents by their recognition discs, because they are their miniature identification cards. Lieutenant Green asks S.I.D. a question, and is amazed by his thorough answer. The Controller continues to say that S.I.D. controls everything in Lunarville from air conditioning to the rockets and Moonmobiles. But a remark Lieutenant Green makes about how Earth designed and developed S.I.D. suddenly angers the Controller, who says that Earth might have helped them in the past but that they are now self reliant, democratic and free. His anger suddenly subsides and he apologizes, with Captain Scarlet giving him a letter from the World President.

Orson then takes the three out in a Moonmobile, showing them round the area. They pass Lunarville 4, where most of the food is grown. He goes on to say that both the elements hydrogen and oxygen are always there, so they never run out of water. Suddenly, Captain Scarlet mentions the Humboldt "Sea." Panicking, Orson demands to know why they want to go there. Captain Scarlet explains to him that it is simple curiosity. After making several excuses and finally refusing them altogether, Orson takes them back to Lunarville 7.

A Shocking Discovery![]

After retuning to Lunarville 7, Orson shows the three Spectrum agents their sleeping quarters, says goodnight, and leaves.

Captain Blue tells Captain Scarlet about Orson's reaction to the Humboldt "Sea," but Scarlet silences him and points out that he suspects that the room is bugged. He then tells Captain Blue to keep talking about something else while he tries to find it. Captain Blue and Lieutenant Green then make small talk.

Sure enough, Orson is in the control room listening in. Captain Scarlet finally finds the bug, hidden inside one of the table lamps, and silences Captain Blue and Lieutenant Green. Wondering why it has suddenly grown quiet, Orson turns up the receiver volume, whereupon Captain Scarlet shouts as loudly as he can directly into the microphone, making Orson's ears ring, before pulling it out. The Controller enters the room and Orson tells him what has happened. He tells him to leave them alone, that he has programmed S.I.D. to accept only his authorization and that he will keep all the exits sealed, trapping the three Spectrum agents.

Later, Captain Blue and Lieutenant Green are sleeping, but Captain Scarlet goes to the main control room and requests a Moonmobile from S.I.D. However, S.I.D. replies that his recognition disc cannot authorize his request, and that only the Controller has the authority to make such requests, having declared a state of emergency and evacuated all the other people on the lunar station.

Captain Scarlet goes back to wake up Captain Blue and explains the situation. He then says that they need to get a moon mobile and explore the Humboldt "Sea," which could be the answer to their problems. He tells Captain Blue to wake up Lieutenant Green and have them both meet him at Airlock 3 while he finds a way to get S.I.D. to let them out. Captain Scarlet then goes to the sleeping quarters of the Lunar Controller, who is fast asleep there, and walks over to him.

After getting S.I.D. to let them out, they get a Moonmobile and set off for the Humboldt "Sea," with Lieutenant Green reading the map referances and Captain Blue driving the moon mobile. After much searching, the three finally find an area called "Crater 101." They go to it and see machinery, with no one controlling it, building a Mysteron complex similar to the one from Mars. After observing it, Captain Scarlet decides that they have seen enough and will have to return and report their discovery to Cloudbase.

The End of Lunarville 7[]

Back at Lunarville 7, Orson discovers that the Spectrum agents are gone, and he immediately tells the Controller, who is amazed, angry, and unable to understand. S.I.D. suddenly announces that Captain Scarlet, Captain Blue, and Lieutenant Green have now entered. The Controller immediately orders Orson to bring them in, intending what they have seen never to get back to Earth. But Captain Scarlet suddenly enters and arrests the Controller for rejecting the World President's letter, that was subject to their investigation. Then he proceeds to escort him back to Earth. The Controller, scoffing, reveals himself to be a Mysteron agent and says that soon the Mysterons will take over the Moon and then destroy Earth. Captain Scarlet reveals that they have seen the complex and that it will be destroyed. The Controller announces that none of them will leave the Moon alive.

Captain Scarlet orders S.I.D. to prepare a lunar rocket for immediate launch to take them back to Earth. S.I.D. obeys, much to the amazement of the Controller, who orders S.I.D. to seal all of Lunarville's exits. But S.I.D. does not comply with these orders. After knocking out Orson, the three Spectrum agents head for the airlock. The Controller continues to order S.I.D., futilely, to obey his instructions, but Captain Scarlet reveals that he had exchanged recognition discs with him the night before, making S.I.D. unable to identify him.

The Controller, growing desperate, still continues to order S.I.D. to obey him, but the computer still refuses to recognise his authorisation. The Spectrum agents quickly get into the rocket, which, by this time, is ready for launch.

Fuming with anger, the Lunar Controller pulls out a gun and gives S.I.D. one last chance to obey him. When the computer still cannot, he shoots at S.I.D. After several shots, with the Controller still screaming at S.I.D. in frustration to obey him, the computer explodes, causing a pyramid reaction that completely obliterates Lunarville 7 and destroys the Mysteron likenesses of the Controller and Orson in the process. Captain Scarlet, Captain Blue, and Lieutenant Green lift off in the lunar rocket just as the lunar station starts to explode, and all three return safely to Earth.

Back on board Cloudbase, Colonel White discusses the situation and says that they will never know how the Mysterons took over the Lunar Controller or Orson because of the destructions of both of their likenesses. He reads them a note of thanks from the World President and tells them that this space exploration will continue until the Mysterons have ended their "War of Nerves" against the Earth. The reports from the Spectrum agents dress the stage for the mission whose focus "Crater 101" is.

Production details[]

  • The speech with which the Controller of Lunarville 7 begins the instalment states that approximately 4,000 humans consider Luna home. Dialogue edited out of Tony Barwick's original script was intended to discuss the self-sufficiency of lunar bases in more detail; one example of the omitted dialogue states, "We were all born on Earth, but I see a future where men will be born, spend their lives, and die on the Moon."
  • The Moonmobiles as shown in "Lunarville Seven" and "Crater One Hundred And One" influenced Derek Meddings's designs for the SHADO Moonmobiles in UFO, the later Century 21 TV programme that was the first Century 21 Television Production to be produced entirely in live action.
  • The incidental music in this instalment makes extensive use of an Ondes Martenot, which instrument series composer Barry Gray himself played, for the sequences situated in and around Lunarville 7. The music for this instalment and that for "The Launching" were both recorded in the same studio session, on 23 July, 1967. Four instrumentalists were in attendance at that session.
  • "Lunarville 7" was the first episode of Captain Scarlet to be produced featuring the lyrical version of the series' end titles music performed by pop group The Spectrum. This was recorded on 26 July 1967.
  • Footage from "Lunarville 7" was incorporated into the 1981 Captain Scarlet compilation film Revenge of the Mysterons from Mars.


Chris Drake and Graeme Bassett praise "Lunarville 7" as a good episode of Captain Scarlet. The British Board of Film Classification certifies the episode U, noting that it contains one "mild" instance of violence.


  • Captain Scarlet - "GOODNIGHT ORSON!"
    Orson - "AAAARGHH!"


  • The Lunar Controller states that Humans had landed on the Moon in the 1970s. In truth, the NASA's Apollo Project landed Flight No. 11 on the Moon in 1969.
    • This episode was produced and first transmitted prior TO Apollo 11's successful flight.


CS V3 Lunarville 7 (Young Corgi).jpg

  • In 1993, the instalment was also a novelisation. It was Volume Three of a four volume book series written by Dave Morris, illustrated by Arkadia and published by Young Corgi. The book had this description on the back:
This is the lunar Controller. I have been able to contact the Mysterons...
Earth is under attack by the Mysterons. Leading the fight against the Mysterons is one man fate has made indestructible: Captain Scarlet.
When the lunar controller announces that he is negotiating a peace treaty between the Moon and the Mysterons, Captain Scarlet blasts off to the moon to investigate - and discovers a secret Mysteron base under construction.
Trapped in the lunar complex, Scarlet must escape. If he fails, the Mysterons will take control of the Moon...
An explosive and action-packed adventure based on an episode of the sensational TV series.
—The book's description
Instalments of Captain Scarlet and the Mysterons
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"The Mysterons""Winged Assassin""Big Ben Strikes Again!""Manhunt""Avalanche""White as Snow""The Trap""Operation Time""Spectrum Strikes Back""Special Assignment""The Heart of New York""Lunarville 7""Point 783""Model Spy""Seek and Destroy""Traitor!""Renegade Rocket""Crater 101""Shadow of Fear""Dangerous Rendezvous""Fire at Rig 15""Treble Cross""Flight 104""Place of Angels""Noose of Ice""Expo 2068""The Launching""Codename Europa""Inferno!""Flight to Atlantica""Attack on Cloudbase""The Inquisition"