Doctor Who: State of Decay

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State of Decay is the second serial of Doctor Who’s E-Space Trilogy and the fourth serial of Season 18. It was broadcast in four episodes from November 22 to December 13, 1980. It was written by Terrance Dicks and directed by Peter Moffatt. It stars Tom Baker as the Fourth Doctor, Lalla Ward as Romana, John Leeson as the voice of K9, Matthew Waterhouse as Adric, Emrys James as Aukon, Rachel Davies as Camilla, and William Lindsay as Zargo.

Originally written for Season 15 as The Witch Lords, the script was shelved due to a BBC embargo on vampire-themed content while a Dracula adaptation was in production. Revived for Season 18, the story gained new context as part of the E-Space Trilogy, which explores themes of entropy, stagnation, and societal decay.

Still trapped in E-Space, the TARDIS arrives on a misty world where a medieval village lives in fear of the “Three Who Rule” in a dark tower. The Doctor and Romana discover the tower is a crashed starship and the lords are servants of an ancient Great Vampire from Time Lord legend. As Adric is drawn into the court’s schemes, the Doctor recalls a long-forbidden war and finds a way to turn the old technology into a stake through the monster’s heart.

Episode One

Still lost in E-Space, the TARDIS settles on a fog-drenched world of thatch and superstition. The village quails as drums summon a “Selection” to the looming Tower, where the Three Who Rule (Aukon, Camilla, and Zargo) take the chosen away and no one returns whole.

Ivo, a blunt headman, rages at the blood-tax; a quiet scholar, Kalmar, hoards fragments of forbidden “Old Science” in a hidden shack; a hunter, Tarak, watches the Tower like a man nursing a private vow. The Doctor strolls to the cliff edge and peers up at the Tower’s silhouette, noting fins, plating, and a nosecone: this castle began life as a spacecraft. Romana and Adric follow clues to a ruined settlement stamped with the fern-leaf emblem of an Earth mission.

Bats boil from the trees at dusk; K9’s laser disperses them but the air tastes of iron. When the Selection begins, Aukon’s eyes find Adric and linger. The Doctor and Romana break into Kalmar’s den and see a scratched ship’s name (HYDRAX) beneath candle soot. Villagers whisper of “the Wasting,” bodies drained of colour. The Doctor’s smile thins. In a carved chapel, glass lamps flicker and a red banner stirs; above the altar a mural shows a horned king rising from a pit. The night belongs to the Tower.

Episode Two

Romana is taken to the Tower’s candlelit halls where Camilla purrs polite questions and Zargo offers wine that tastes of copper. Mirrors are covered: or absent. Aukon, velvet and hunger, speaks in her head and calls her “Time Lady” as if it were a vintage. In the laboratory below, Kalmar shows the Doctor a stash of instrumentation torn from “the Old Ones’ ship.”

Among the dials and dust the Doctor finds a crew roster and a star map that should not fit this sky, then a battered manual that triggers a memory from Gallifrey: the Record of Rassilon and the ancient war on the Great Vampires, slain by bow-ships that fired vast steel bolts through their hearts. He looks toward the Tower and shivers; the outer shell is the Hydrax’s hull. Outside, Adric is lured by Aukon’s glamour and promises of power, wavering between boyish bravado and a predator’s beckoning.

Bats pour from arrow slits; K9 holds them off with crisp bursts as villagers scatter. Deep below, Romana is strapped in a ceremonial chair as Camilla’s shadow leans close; red lamps throb in time with something deeper. The Doctor hammers through a bricked passage with Tarak and glimpses, in a lower vault, pipes and glass retorts feeding down into rock: as if the castle is bleeding into the earth.

Episode Three

The rescue spirals into horror. Tarak drags Romana from the chair, only to be seized by Camilla’s grip; he dies with a hunter’s curse on his lips as she drinks. Adric, dazed by Aukon’s telepathy, steps toward a dais to swear himself “chosen” and flinches back at the last instant, conscience louder than seduction. Kalmar’s rebels flare and fall, but their attack buys the Doctor enough seconds to slip beneath the Tower into a taloned cavern where the floor is a lattice of bone.

There, in a gulf that swallows light, he hears a heartbeat like a drumline for earthquakes. Pipes plunge into the dark and come up red. The Doctor stares down at a titanic chest moving in sleep and names it at last: the Great Vampire, lord of the legends his people vowed to exterminate. If bow-ships slew its kind, a ship can be a stake.

He races back to Kalmar with a mad plan: bring the Hydrax’s engines and guidance back online, align the Tower over the pit, and ram the nosecone down through the heart when the drive fires. Bats batter windows; villagers flood the crypts; K9 trundles through slick stone like a small, stubborn lantern. Somewhere above, Aukon raises his hands to call the herd.

Episode Four

Revolt and ritual collide. Aukon summons a storm of bats and acolytes; Camilla and Zargo descend smiling, fangs bright, as Romana and Adric shepherd the villagers through side stairs to Kalmar’s workshop. The Doctor and Kalmar tear covers from consoles that once launched the Hydrax and now masquerade as altars.

Systems hum; dust dances; the Tower remembers itself as a rocket. Below, the pit’s heartbeat quickens, sensing blood withheld. Aukon strides into the engine room and reaches for the Doctor’s throat; K9’s beam snaps him back, and Romana slams a breaker that floods the chamber with actinic light. The Doctor slaps a final linkage across scorched terminals and yells for everyone to brace. Engines roar: ancient, glorious. The Tower lurches; guidance slews; mass and momentum turn cathedral into spear.

Far beneath, steel kisses flesh. The impact shudders through stone like a bell. In the throne room the Three Who Rule shriek and crumble to grey dust; bats slap to the floor like dead leaves. Silence grows, strange and clean. Dawn finds villagers blinking at a world no longer ruled by fear. Kalmar opens cabinets and speaks the first lessons aloud. Ivo lowers his spear and laughs. The Doctor, Romana, Adric, and a soot-smudged K9 step into the TARDIS, E-Space still green outside, the way home still hidden: and a legend finally put to bed.

Themes

As the E-Space trilogy’s gothic heartbeat, State of Decay bathes Season 18’s cool geometry in candlelight: feudal dread, buried spacecraft, and a vampire court that feels older than history. Measured against its neighbours, it stands a shade below the conceptual bravura of Warriors’ Gate yet above the clever austerity of Full Circle.

In the wider canon it sits comfortably alongside kindred chillers like Pyramids of Mars, Image of the Fendahl, and Horror of Fang Rock. It may not reach the jewelled exactitude of The Robots of Death, but its atmosphere, lore, and Tom Baker/Romana chemistry place it high on the shelf: certainly stronger and more assured than curios like Meglos and many late-season romps of earlier years.

Continuity threads run deep and sure. Drawn into E-Space after Full Circle, the TARDIS confronts the Time Lords’ oldest nightmare (an ancient war with Great Vampires whispered since academy days) before the arc tilts toward the threshold tale of Warriors’ Gate.

Its “science in ritual robes” idiom converses with The Brain of Morbius and Pyramids of Mars, while its buried-ship-as-castle concept nods to the show’s love of haunted machines. The addition of Adric continues to reshape the crew dynamic that will carry through The Keeper of Traken and the entropy reckonings of Logopolis, and the vampire myth will echo far ahead in modern detours like The Vampires of Venice. By its final staking of the Great One, State of Decay has done more than scare the blood cold: it has braided legend to arc, past to future, with elegant, midnight confidence.

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