[[caption-width-right:350:[[Theatre/OurTown Here's some scenery, for those that think they need scenery.]]]]
->''"One good solid hope's worth a cart-load of certainties."''
-->-- '''The Doctor'''

The one where ''Doctor Who'' meets that one part in ''[[VideoGame/TheLegendOfZeldaTheWindWaker The Wind Waker]]''.

The Doctor, Romana, K-9 and Adric are still stuck in [[Recap/DoctorWhoS18E3FullCircle E-Space]]. While they're trying to figure out a way back into N-Space (our universe), the TARDIS is hijacked by a lion-headed HumanoidAlien that walks in through the TARDIS doors ''while the TARDIS is still in flight''. The alien brings the TARDIS to land, announces that his name is Biroc and that they should not trust the people they are about to meet, and departs as mysteriously as he came.

Our heroes find themselves in a featureless white void, empty except for the TARDIS, a stranded spaceship (whose crew, led by Captain Rorvik, are indeed untrustworthy), and an incongruous ruined stone building.

Many confusing things happen. And Adric flips coins a lot.

It turns out that the void is some kind of {{pocket dimension}} that is on (or, perhaps, somehow ''is'') the boundary between N-Space and E-Space. When they eventually find the way out, consequently, our heroes are able to choose which way out to go. The Doctor and Adric return to N-Space in the TARDIS, while Romana and K-9 decide to return to E-Space and help Biroc in his continuing quest.

* AlmostDeadGuy: "The secret to the gateway is... ''[thud]''"
* AnimatedArmor: The Gundan robots are designed to resemble decorative suits of armour when they're at rest (and are mistaken for such before their true nature is revealed).
* ArtImitatesArt: The Gate is '''exactly''' copied from the German Romantic painter Caspar David Friedrich's ''[[http://www.bc.edu/bc_org/avp/cas/his/CoreArt/art/rom_fri_clcem.html Klosterfriedhof im Schnee]]''.
* {{BFG}}: Adric holds off the slave traders with their own giant cannon. "I don't know what these levers do...but it's pointing in ''your direction.''"
* BitingTheHandHumor: The privateer crew are, according to Creator/JohnNathanTurner, based on Stephen Gallagher's many tribulations while writing at Granada TV, and the poor work ethic he found there.
* CobwebOfDisuse: The banquet hall and the suits of armour (which are actually the Gundan robots) are covered in cobwebs when the Doctor finds them.
* DeliberatelyMonochrome: Some of the weirder parts of the story, for thematically-appropriate but difficult-to-summarize reasons.
* DistressedDude: All the Tharils prisoner we see are male.
* ExpoSpeakGag:
-->'''Packard''': Make safe the hatchway.
-->'''Crewmember''': What?
-->'''Packard''': Close the door.
* FeudalFuture: The Tharils' empire in its heyday.
* GalacticSuperpower: The Tharils who used to have an empire spanning many star systems. After a revolt, they were reduced to their current slavery.
* GravitySucks
* GreyAndGrayMorality: Between the Privateer crew and the Tharils. Rorvik and his crew have the air of [[PunchClockVillain ordinary people just doing their job]]. Of course, that job is ''slavers'', but as it turns out, the Tharils themselves were slavers of humans in the past.
* HandSignals: Romana tells Adric not to come out if she gives the danger signal...then mimes putting her hands up.
* HeWhoFightsMonsters: According to the backstory, when the Tharils' slaves overthrew their masters, they crushed them under their own heels.
* HumansAreTheRealMonsters
* IChooseToStay: Romana, though this is her official departure on-screen, it is well-chronicled in the Expanded Universe that she eventually comes back and becomes Lady President of Gallifrey.
* IncrediblyLamePun: "You were the noblest Romana of them all." (Compare ''Theatre/JuliusCaesar'' V.v)
* InTheDoldrums: The titular setting of the serial. A subversion of sorts as doing nothing is the only way to ''get out.''
* IronicEcho: The Tharls had enslaved people in the past "The weak enslave themselves" and now are slaves themselves. The Doctor gives them an IronicEcho, and one concedes the justice, but they have suffered enough.
* KarmicDeath: Sagan electrocutes several Tharils to death, and is then himself electrocuted.
* KillEmAll: The privateer crew are wiped out when the ship explodes.
* KilledMidSentence: See AlmostDeadGuy.
* KillerRobot: The Gundan robots.
* KilroyWasHere: Written on a wall inside the spaceship. It's later mentioned that one of the crew actually is named Kilroy.
* KingOfBeasts: The leonine Tharils were once kings.
* LetsGetDangerous: Toward the midpoint of Episodes 3 and 4, the ragtag crew of the ''Privateer'' suddenly lose everything that made them funny and likable, and become incredibly cold and efficient.
* MadeASlave: The Tharls had enslaved people in the past "The weak enslave themselves" and now are slaves themselves. The Doctor gives them an IronicEcho, and one concedes the justice, but they have suffered enough.
* MeaningfulName: The Tharils are ''thralls'' to the Privateer crew.
* MindScrew: So, imagine you're in a cubby-hole you found behind a mirror, and that hole is in a different universe from the main room. Seriously, don't think about that too long, or [[YourHeadASplode you know what will happen]].
* OurGraphicsWillSuckInTheFuture: The privateer's computer shows the TARDIS as a rotating wireframe graphic. According to the DVD commentary, this wasn't even computer-generated; it was done by filming an actual wireframe model.
* PocketDimension: The is set inside an even smaller pocket dimension than E-Space small enough to cross ''on foot'' on the border between E-Space and N-Space.
* PunchClockVillain: In the worst sense. The privateer slavers think nothing of using the Tharils as ballast. Once they figure out that Romana is "time-sensitive', they immediately stop treating her like a sentient being and toss her into the clink, too.
* [[TheRevolutionWillNotBeCivilized The Revolution Was Not Civilized]]: The reason for the Tharils' plight.
* SheatheYourSword: Doing nothing (Tharils) vs. doing something (Rorvik) becomes an arc over the four episodes. In Rorvik's case, "doing something" resulted in the destruction of his ship and crew.
* ShoutOut:
** When Biroc vanishes during a conversation with the Doctor, the Doctor states that he is gone again, which is "like talking to a [[Literature/AliceInWonderland Cheshire Cat]]".
** The Doctor's parting words to Romana paraphrases ''Theatre/JuliusCaesar''.
--->You were the noblest Romana of them all.
* SlaveRace: The Tharils, but this wasn't always the case.
* [[SpaceTrucker Space Truckers]]: The privateer crew.
* StiffUpperLip: The Doctor's reply when Adric asks if Romana will be all right. "[[SuddenlyShouting ''All right?!'']] She'll be ''superb''." The little pause in between the two lines subtly shows the Doctor's absolute heartbreak.
* StuffBlowingUp: What happens when Rorvik tries to use the ship's exhaust blast against the mirror.
* SupernormalBindings: The shackles made from dwarf star alloy, used to prevent the enslaved Tharils slipping away into the timestream.
* ThoseTwoGuys: Aldo and Royce.
* TooDumbToLive: Rorvik
* UsedFuture: The spaceship clearly comes from one.
* VillainousBreakdown: "I'm FINALLY GETTING SOMETHING DONE!"
* VoidBetweenTheWorlds: The main setting.
* WeaponizedExhaust: It doesn't end well.
* WinsByDoingAbsolutelyNothing: The Doctor eventually realises the way to defeat Rorvik is simply to give him enough rope to hang himself.