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  "There's no point in being grown-up if you can't be childish sometimes"
 
 
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          | The Fourth Doctor's Early Adventures |  
          | Companions and Allies: Sarah Jane, Harry Sullivan, Lethbridge-Stewart, Benton Major 
            Enemies: Wirrn, Sontarans, Davros, Daleks, Cybermen, Zygons
 
 
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          | Robot |  
          | Location: England | Date: April 1974 |  
          | 
  UNIT medical officer 
            Harry Sullivan is in charge of The Doctor's recovery. Someone's 
            stealing components for a disintegrator, and evidence suggests the 
            robber's not human. The Doctor slips out of bed and heads for the 
            TARDIS, but Sarah and the Brig convince him to stay and help. The 
            Doctor finds a crushed flower at the site of the latest theft, and 
            estimates the thief weighs a quarter ton. Sarah, with a pass from 
            the Brig, tours Think Tank, a research facility, with its director, 
            Hilda Winters, and her assistant, Arnold Jellicoe. She's told that 
            Professor Kettlewell, a robotics specialist, is no longer there, and 
            that his work's been abandoned, but she's suspicious and goes to see 
            Kettlewell, who tells her no one could carry on his work. Sarah 
            returns to Think Tank and is threatened by a robot. It's stopped by 
            Winters, who tells her it isn't dangerous, and orders it to destroy 
            her. The robot refuses, but Sarah's concerned about the distress it 
            felt. After comparing notes, The Doctor, Sarah, and the Brig visit 
            Kettlewell, who tells them the robot will go mad if its programming 
            is altered. The robot steals a set of missile launch codes. The Brig 
            learns that Winters and Jellicoe belong to the Scientific Reform 
            Society. The next morning, after The Doctor gives into temptation and makes a trip in 
            the TARDIS (see next entry), he and 
            the Brig visit Think Tank, where Winters claims the robot was 
            destroyed because Sarah introduced it to concepts it couldn't deal 
            with. As they leave, Jellicoe tells Winters there's a visitor from 
            the Ministry of Health, Dr. Sullivan, who's checking medical 
            records. Kettlewell calls The Doctor, who's knocked out by the robot 
            when he goes to the professor's lab. Sarah arrives and calms it 
            down, but it escapes. Kettlewell is taken to UNIT, where he tells 
            Sarah and Benton about another invention, a "metal virus" to rid the 
            world of metallic waste. He sees an SRS leaflet, tells them he was a 
            member, and agrees to sneak Sarah into that night's meeting. The 
            Doctor, appalled when he learns this, arranges a raid, but the 
            robot, Winters, Jellicoe, and Kettlewell (who, as The Doctor 
            realized, has programmed the robot) escape, and take Sarah. Harry 
            calls to say Think Tank's being abandoned, and that he  heard mention of a bunker, but the call's cut 
            short. UNIT attacks the bunker, an old atomic shelter. As they 
            approach, Winters orders Kettlewell to use the launch codes. Sarah 
            and Harry, who've been taken to the bunker, rescue the professor, 
            who aborts the launch. Sarah and Kettlewell try to reason with the 
            robot, but it uses the disintegrator and the professor is killed. 
            The robot, in shock, drops the gun. Winters restarts the launch but 
            The Doctor aborts it. The robot captures Sarah, the only person who 
            showed it kindness. It restarts the countdown because it believes 
            this was Kettlewell's wish. Benton mentions the metal virus, and The 
            Doctor and Harry go to the professor's lab. The superpowers, alerted 
            by the Brig, stop the launch. The robot leaves the bunker with 
            Sarah, and the Brig uses the disintegrator on it. The gun causes the 
            robot to grow to gigantic size. The Doctor and Harry return, and The 
            Doctor uses the virus to destroy the robot. With the menace over, 
            The Doctor tempts Sarah with a trip in the TARDIS, and Harry also 
            enters the ship. They take off, leaving the Brig to explain to the 
            Queen that The Doctor will be "a little late" for his dinner at the 
            palace. 
 
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          | Unrecorded Events |  
          | Location: Unknown | Date: Unknown |  
          | During the previous adventure, The Doctor slips away from 
            UNIT HQ and makes a trip in the TARDIS, landing on a planet where a 
            Mordee spaceship crew is having computer trouble. The Doctor 
            apparently succeeds in repairing the computer by imprinting his own 
            personality on it. This journey, which the still-unstable Doctor 
            forgets, will later come back to haunt him (The Face of 
            Evil).
  
 
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          | The Ark in Space |  
          | Location: Nerva | Date: Unknown |  
          | 
  The TARDIS lands on a 
            space station in the far future. The station's been converted into 
            an Ark, with the best of Earth's inhabitants in cryogenic storage, 
            but something has gotten into the machinery and delayed their 
            wake-up call. Harry finds the corpse of a large insectoid creature 
            in a cupboard. Sarah has accidentally been placed in suspension, and 
            The Doctor and Harry revive Vira, the chief medtech, who helps wake 
            her. A technician is missing, and Vira revives Noah, their leader, 
            who suspects the TARDIS crew is responsible. After linking with the 
            cerebral tissue of the dead alien, The Doctor learns the culprits 
            are the insectoids, called Wirrn, whose queen laid eggs in the 
            technician's body before she died, and who absorb the memories of 
            their victims before assimilating them. Noah is infected, but 
            retains enough humanity to place Vira in charge. With the help of 
            Vira and technician Rogin, The Doctor and his companions prevent the 
            Wirrn from taking over the Ark. Noah leads the Wirrn onto the Ark's 
            shuttle and takes off, after Rogin sacrifices his life to ensure the 
            ship's launch. The shuttle explodes, and Vira believes Noah has kept 
            enough of his own personality to save them. The Doctor, with Sarah 
            and Harry, transmats to Earth to repair the receivers there, and 
            Vira begins reviving her people. 
 
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          | The Sontaran Experiment |  
          | Location: England | Date: Unknown |  
          | 
  As The Doctor fixes the transmat, Sarah and Harry 
            explore. Harry falls into a pit, and Sarah can't find The Doctor, 
            who's been captured by colonists who've returned to Earth. Harry 
            escapes from the pit, and Sarah meets Roth, who tells her about a 
            robot which has been capturing his friends. He says they're being 
            taken to an alien in the rocks, who's already captured and released 
            their leader, Vural. With Roth's help, Sarah rescues The Doctor, and 
            they look for Harry. The Doctor falls into the pit, and Sarah and 
            Roth are captured by the robot, which takes them to the alien, a 
            Sontaran named Styre, whom Sarah initially mistakes for Linx (The 
            Time Warrior). Styre is testing to see if humans offer a threat 
            to his people, and uses Sarah to test the human response to fear. 
            Vural and his crew are captured by the robot. The Doctor gets out of 
            the pit and releases Sarah, but is shot by Styre. He survives 
            because a piece of the shuttle locking mechanism in his pocket 
            absorbs the blast. Vural, who'd helped Styre, is tested with the 
            others. The Doctor uses the sonic screwdriver to destroy the robot, 
            and, after briefing Harry, challenges Styre to single combat. Sarah 
            and Harry release the crew, and Harry goes to Styre's ship and 
            removes part of its hardware. The Doctor is losing to Styre, but is 
            saved when Vural distracts the alien, at the cost of his own life. 
            Styre, who's exhausted his energy reserves, goes to his ship to 
            recharge, but a part which The Doctor had Harry remove controls this 
            process, and the ship feeds on Styre instead. The Doctor uses 
            Styre's comlink to inform the Sontarans that Styre is dead, and 
            their Marshal admits the invasion can't proceed without Styre's 
            report. The Doctor and friends use the transmat to return to the 
            Ark, leaving the others to await the arrival of its people. 
 
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          | Genesis of the Daleks |  
          | Location: Skaro | Date: Unknown |  
          | The transmat 
            beam is diverted by the Time Lords, whose emissary tells The Doctor 
            that they want him to deal with the menace of the Daleks by aborting 
            their creation, or altering it so the Daleks will be less of a 
            threat. The Doctor agrees, and is given a time ring which will 
            return him and his companions to Nerva when their mission is 
            completed. The Doctor, Sarah, and Harry are on Skaro, which has been 
            ravaged by a thousand-year war and whose people are mutating 
            because of radiation. The Doctor and Harry are captured by Kaled 
            troops, while Sarah is taken prisoner by their enemy, the Thals. The 
            Kaleds (later mistranslated as Dals: The 
            Daleks), have a Nazi-like military government, though the 
            real power lies with their chief scientist, Davros, who is 
            accelerating
  the mutations and developing a travel machine in 
            which the mutants can survive. The Doctor recognizes the machine as 
            a primitive Dalek and tries to convince Kaled dissidents to halt 
            this work, but Davros is so obsessed he helps the Thals against his 
            own people. After the Thals destroy the Kaled city, Davros sends his 
            Daleks to attack them. Sarah has escaped from the Thals and is 
            reunited with Harry and The Doctor. They're captured by Davros and 
            his aide, Nyder. Davros, who believes The Doctor's claim that he is 
            from the future, threatens to kill Sarah and Harry unless The Doctor 
            reveals the future of the Daleks, which Davros intends to change by 
            altering their programming to prevent their defeats. After he has 
            done so, they are locked up, but escape with help from the 
            dissidents, and The Doctor goes to the Dalek incubation chamber to 
            destroy the mutants. He questions whether he, or the Time Lords, 
            have the right to do this, and remembers that species which would 
            otherwise have attacked each other will instead unite to oppose the 
            Daleks. He is apparently spared the decision when Gharman, a 
            dissident leader, arrives to tell him that Davros has agreed to halt 
            his work until a vote can be taken on whether to continue. This, 
            unfortunately, is a ruse devised by Davros to discover who opposes 
            him, and the dissidents are exterminated by the Daleks. The Doctor 
            has recovered the time ring, which the Kaleds had seized, and 
            destroys the tape recording of the Daleks' future history. As he 
            returns to the incubation chamber to complete his mission, the Kaled 
            bunker is attacked by Thal forces. The Doctor is nearly killed by a 
            Dalek, which inadvertently sets off the explosives he has placed in 
            the incubation room. The Thals have set bombs to seal up the bunker 
            and The Doctor barely escapes in time. He and the others watch a 
            monitor screen, and see the Daleks, who've taken charge of their own 
            destiny, turn on Davros and his followers and exterminate them 
            (although Davros, who seems always to have a backup plan, survives: 
            Destiny of the Daleks). The Daleks are sealed in the bunker, 
            delaying their development, and as The Doctor and his friends use 
            the time ring to leave, he tells them he believes that a greater 
            good will eventually come from the evil of the Daleks. 
 
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          | Revenge of the Cybermen |  
          | Locations: Nerva, Voga | Date: 30th Century |  
          | 
  The time ring returns the travelers to Nerva, at 
            a point when the Ark is serving as a navigational beacon. The Doctor 
            tells Sarah and Harry that the TARDIS will drift back in time to 
            meet them, and they explore the station. They find several bodies 
            with strange markings, and are captured by the crew, whose 
            commander, Stevenson, holds them responsible for this "virus", which 
            has killed most of his people. One of the crew, Kellman, is working 
            for the Cybermen, and has used Cybermats to transmit the disease. 
            The beacon picks up a signal from Voga, the legendary "planet of gold", which played a major role in the Cybermen's last defeat 
            (Cybermen can be killed by gold dust, which shuts down their 
            breathing apparatus). Sarah is attacked by a Cybermat, and after The 
            Doctor repairs the transmat, which Kellman sabotaged, uses it to 
            send Sarah and Harry to Voga. The transmat filters out the virus, 
            but Sarah and Harry are captured by Vogans. The Cybermen arrive, and 
            take The Doctor and the crew captive. They plant bombs on them and 
            transmat them to Voga. Kellman is beamed down to investigate a 
            malfunction in the transmat on Voga, and Harry learns that he's a 
            double agent, who's been working with a dissident faction of Vogans 
            to lure the Cybermen to the beacon, which will then be destroyed by 
            a missile. Kellman tells them about the bombs, and he and Harry try 
            to locate The Doctor and the others. Kellman is killed in a cave-in, 
            which also knocks out The Doctor. After Harry nearly explodes the 
            bomb by tampering with it, The Doctor frees himself and defuses the 
            other bombs. Sarah, who doesn't know The Doctor's on Voga, has 
            returned to Nerva, and The Doctor persuades the Vogans to delay the 
            missile while he rescues her. The Cybermen, who have discovered that 
            their first plan has failed, have transferred more bombs to Nerva, 
            and intend to crash it into the planet. They leave The Doctor and 
            Sarah tied up on the bridge, and depart. The Doctor gets free, 
            prevents the crash, and tells Stevenson how to divert the missile, 
            which destroys the Cybermen's ship. The TARDIS arrives, and The 
            Doctor finds a message from the Brigadier, who's used the space-time 
            telegraph The Doctor left behind to summon him back to Earth. 
 
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          | Terror of the Zygons |  
          | Locations: Scotland, London | Date: 1975 |  
          | 
  The TARDIS arrives near 
            Loch Ness, and The Doctor and friends hitch a lift to the village of 
            Tulloch with the Duke of Forgill. The Brig has recalled The Doctor 
            because of attacks on North Sea oil rigs. During their 
            investigation, Harry is shot and taken to the hospital. He's 
            kidnapped by an alien creature, which locks Sarah and The Doctor 
            into a decompression chamber. The Doctor hypnotizes Sarah, and uses 
            his yoga training, to conserve oxygen, and they are rescued by 
            Benton. Harry is taken to the spacecraft of the aliens, a race of 
            shape-shifters called Zygons, who've used the area as a base while 
            awaiting the arrival of a fleet which will make Earth suitable for 
            their species. They've stayed hidden for centuries, but the recent 
            increase in oil drilling has threatened their safety, and they've 
            used their cyborg, an amphibious creature called the Skarasen, to 
            attack the rigs. The Doctor learns that a homing device found in the 
            wreckage of one of the rigs still works, and heads across Tulloch 
            Moor with it while UNIT tries to track the signal. He's pursued by 
            the Skarasen, but is saved when Harry disrupts the Zygon control 
            panel and makes them lose contact with the cyborg. The Doctor, Sarah 
            and the Brig visit the Duke to get permission to use depth charges 
            against the creature. He dismisses their stories of the monster, but 
            lets Sarah use his library to research it. She accidentally 
            activates a hidden panel, and follows a passage which leads to the 
            Zygon ship. She rescues Harry, and when they tell The Doctor what 
            they've learned, he enters the ship. He's captured by Broton, the 
            Zygon leader, who's impersonated the Duke, and the ship takes off 
            despite UNIT's efforts to stop it. The Doctor risks his life to send 
            a signal to UNIT, and activates the ship's self-destruct mechanism. 
            He, the real Duke, and other captives escape from the ship just 
            before it's destroyed, and all the Zygons except Broton are killed. 
            Broton, as the Duke, has gone to London, where he intends to use the 
            Skarasen to attack an international conference on energy. The Doctor 
            and the others arrive at the conference site, and Broton is killed 
            by the Brig. The Doctor finds a homing device which Broton has put 
            in his pocket, and destroys it. The Skarasen returns to Loch Ness, 
            the only home it's ever known. Back in Scotland, Harry declines The 
            Doctor's offer of further adventures, but Sarah agrees to accompany 
            him in the TARDIS, provided they head straight back to London. 
 
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          | Planet of Evil |  
          | Location: Zeta Minor | Date: 372nd Century |  
          | 
  The TARDIS picks up a distress signal, and The 
            Doctor diverts the ship to investigate. He and Sarah arrive on Zeta 
            Minor, which is being explored by a survey team led by Professor 
            Sorensen. All but Sorensen have been killed, but their signal has 
            been picked up by a Morestran Probe ship commanded by Controller 
            Salamar and first officer Vishinsky. The Doctor learns the team has 
            found a gateway to an anti-matter dimension, and have taken samples. 
            The deaths have been caused by an anti-matter being which is trying 
            to recover the material. Sorensen, who's convinced that he's found a 
            major new energy source for his people, refuses to give up the 
            samples, but the being won't let the ship leave. The Doctor 
            convinces the Morestrans to give the material back, and the ship 
            takes off, but is pulled back because Sorensen has kept a sample. 
            It's infected him, and he mutates into an anti-matter being, which 
            splits into duplicates after Sorensen is shot with a neutron 
            accelerator by Salamar, who's cracked under the strain. With help 
            from Vishinsky and Sarah, The Doctor overcomes Sorensen and takes 
            him back to Zeta Minor in the TARDIS. The anti-matter creature cures 
            Sorensen, and The Doctor suggests he try an alternative energy 
            source, the kinetic motion of planets, to solve the Morestrans' problems. 
 
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          | Unrecorded Events |  
          | Locations: London, Cambridge | Dates: 1975, 1955, 1980 |  
          | Sarah, whose journalism career has been neglected as a 
            result of her association with The Doctor, takes a break when they 
            return from Zeta Minor. The Doctor 
            visits Professor Chronotis at Cambridge in 1955 (Shada), and 
            pays his first visit to Logopolis, where he declines The Monitor's 
            offer to fix the TARDIS's chameleon circuit (Logopolis). 
            He returns for Sarah, 
            arriving in 1980, and they resume their travels.
  
 
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