The Fourth Doctor's UNIT Chronicles

A scientist desperate to escape the collapsing tunnels of the abandoned Llanfairfach colliery stumbles through the darkened, unstable passageways. The colliery’s official closure signs belie the dangerous activity below where …

The Doctor and Jo discuss the TARDIS's repaired dematerialization circuit, setting up their journey to Metebelis Three. Jo interrupts to declare her intention to travel to Llanfairfach in South Wales …

In the UNIT laboratory tensions erupt as Jo Grant openly defies the Brigadier's direct order to focus on industrial sabotage at Global Chemicals. Rejecting UNIT protocol and career risks, she …

The Doctor and Brigadier Lethbridge-Stewart arrive at Llanfairfach Colliery just as Jo Grant and Bert begin descending into the unstable mine shaft where a covert environmental experiment has taken hold. …

Bert and Jo are trapped in the colliery lift cage when it suddenly lurches into freefall. Bert shouts a warning and tries to shield Jo as they crash onto the …

The Brigadier’s attempt to coordinate rescue efforts via telephone is blocked by Director Stevens, who diverts all incoming lines and leaves the line dead. With direct communication severed and no …

Professor Jones receives an urgent update from Miss Grant about a cable sabotage incident at the colliery, revealing Global Chemicals' covert acquisitions of specialized cutting technology. The revelation compounds suspicions …

The Brigadier takes urgent action as the colliery crisis escalates, bypassing standard command channels to reach Captain Yates directly. His unauthorized request for mobilization signals a breakdown in trust with …

The dire situation in the colliery forces an immediate strategic shift as UNIT realizes the mine’s west seam is sealed and critical rescue equipment appears deliberately missing. The Doctor, recognizing …

Professor Jones leads an organized protest at Global Chemicals' main gate, using music and signs to draw security away from the perimeter. Exploiting the chaos, the Doctor arrives in a …

Trapped deep in the mine, Jo senses the air growing thick with a creeping hazard that Bert dismisses with forced reassurances. Her observation serves as an early warning about the …

Bert and Jo stumble through the crumbling West Seam roadway, their progress slow and labored after the colliery accident. Bert’s exhaustion threatens to overwhelm them both, but Jo’s relentless encouragement …

Joness urgent appeal to the Brigadier reveals the mounting death toll in the mining community, his frustration over inaction, and the scientists insistence that Global Chemicals is to blame. The …

Elgin confronts Fell in the Global Chemicals corridor about his role in the mine disaster, pressing him to admit he lied about lacking cutting equipment while knowing the truth. Fell …

Stevens meets the Brigadier’s demand for control over the Global Chemicals crisis with veiled threats and a calculated call to the Minister of Ecology. The Brigadier asserts UNIT’s authority and …

The Brigadier and the Minister for Ecology face off in the Cabinet Room over UN Article 18.3, which grants host nations discretion over international interventions during domestic crises. The Minister …

Stevens receives political protection after a call with the Prime Minister, but the Brigadier uses this moment to escalate his confrontation in Stevens' office. The Brigadier explicitly warns Stevens that …

The Doctor and Jo climb up through the pipe, their progress marked by the increasing stench of industrial waste clinging to the walls. As they near the top, Jo’s senses …

The Doctor and Jo’s covert investigation of Global Chemicals’ pipe system is abruptly exposed when the facility’s computer detects their intrusion. Fell, suffering visible torment, reports their location to Stevens …

With the Doctor and Jo trapped in the toxic waste pipe and milliseconds from a deadly flood, Elgin confronts the conflicted Fell. He rejects corporate obedience and appeals to basic …

Stevens seeks to align Global Chemicals with UNIT under the guise of cooperation but with the ulterior motive of controlling the investigation and mitigating corporate exposure. The Brigadier, sensing patronization …

Stevens maneuvers Fell into a vulnerable state before activating a mind-control device that renders him pliable to his commands. As Fell’s memories of past manipulation surface, Stevens demonstrates his absolute …

Elgin leads the Doctor and Jo through a Global Chemicals corridor when he spots the fleeing Fell. Ignoring Elgin’s shouts, Fell scrambles over the railing and plunges down the external …

The Doctor interrupts a relaxed evening among the mining community to answer a call delivered by Nancy. Returning with grim news, she announces Bert’s death and reveals Hughes’ autopsy results, …

The Doctor and Jones rush to Hinks’ side after he’s attacked by a swarming maggot left behind by the mine infestation. As Jo tends to the collapsing victim, the team …

The Brigadier returns to Llanfairfach Colliery with UNIT engineers and explosives, determined to seal the mine to contain the maggot infestation. Committed to a military solution, he orders demolition charges …

Jones and the Doctor examine a maggot's slime under a microscope, discovering its ability to rewrite human cells by converting them into maggot cells. While Jo struggles with the ethical …

The Doctor bursts into Stevens' office in a state of alarm, reporting that reckless mining operations at Global Chemicals have triggered a catastrophic infestation of aggressive giant maggots. These creatures …

The Brigadier executes a calculated military strike to contain the maggot infestation at Llanfairfach Colliery. As explosives detonate beneath the mine, the pithead buildings collapse in a massive fireball, engulfing …

Stevens confronts the Doctor with cold finality after the mine detonation, dismissing him with a veiled threat of future violence. Recognizing Yates as a liability, Stevens orders him confined under …

Stevens faces his hidden master Boss in his own office after ordering the Doctor and Yates away. The explosion in the mine outside marks the point of no return for …

The Brigadier insists the maggot crisis has been resolved by sealing the mine, dismissing the Doctor's concerns. His rigid military logic contrasts with the Doctor and Jo's evident skepticism. Tension …

In Jones’ cluttered lab, the Doctor and Jo examine grotesque larval samples under flickering fluorescents. Jones deduces that oil waste from Global Chemicals has triggered an atavistic mutation in the …

The Brigadier, recognizing the growing danger posed by the maggot infestation, orders a sample of the mysterious oil taken from the mine. Though brief, this directive marks a shift toward …

Jones risks his safety to challenge Jo’s provocative approach, revealing mutual concern beneath their banter as they confront the spreading maggot threat. The moment cements their fraught alliance when surviving …

Under Brigadier’s orders the Soldier aboard the Greyhound helicopter radios confirmation and unleashes a massive bombing run directly targeting the maggot-infested area. The attack embodies brute-force efficiency, aiming to crush …

As the Doctor and allies hold the last line against the BOSS machine’s global efficiency campaign, Stephens tightens the noose from outside the computer room. The Doctor seizes control of …

The Brigadier and Benton survey the smoldering ruins of the slag heap after a heavy bombing campaign, expecting the maggot infestation to be eradicated. Benton’s sharp eyes spot movement through …

Cliff is still unconscious in the tunnel's dangerous dark while Jo works alone to repair a failing radio amid the threatening sounds of approaching maggots. The tension builds as the …

The Doctor intercepts Captain Yates unexpectedly and quickly subdues him, noticing immediately that Yates is acting under BOSS's influence. Instead of attacking, the Doctor discerns Yates followed him via Global …

The Doctor and Yates trigger a phase-four security alert after being spotted by a Global Chemicals surveillance camera while moving through a compromised corridor. The automated system immediately orders armed …

Benton monitors the maggot threat near the slag heap while the Brigadier voices military concerns about their containment. A sudden radio transmission crackles through Benton’s equipment—Jo’s voice, barely recognizable as …

As the crisis escalates atop the Slag Heap, the Doctor seizes control of the unfolding rescue mission, orchestrating Benton’s radio contact with Jo Grant through quick, precise instructions. Recognizing the …

The Doctor’s attempt to break BOSS’s hold on Yates culminates in a tense confrontation. Yates appears armed and unrepentant, declaring his orders require the Doctor’s death. When the Brigadier’s arrival …

The Doctor awakens Yates in Professor Jones' laboratory after his interrogation by BOSS, having resisted the machine’s brainwashing to infiltrate Global Chemicals. Aware the stakes have escalated from a localized …

The Brigadier delivers a piece of slag contaminated with alien maggot residue to the Doctor’s lab, supplying the first tangible evidence linking the green sickness infestation to Professor Jones’s research. …

The BOSS computer identifies Captain Yates as a resistant subject after his successful escape from processing. Declaring him a valuable specimen rather than a threat, BOSS orders Stevens to execute …

Jo lingers at Jones's side in the community room as his infected green patch spreads, a visible sign of his deteriorating condition. Her mounting frustration and helplessness boil over into …

The final maggots succumb to the antidote fungus just as the exhausted Doctor and Benton prepare to depart, the danger seemingly past. Benton’s jaunty taunts to the deceased creatures end …

Under a pale moon near the jagged silhouette of the slag heap, Brigadier General Chris Church confronts the detained rogue scientist, his voice low but insistent. The heavy shadow of …

Yates abandons the immediate threat assessment in the Community Room to investigate a commotion along the slag heap, splitting the team’s focus at a critical moment. The Doctor and Jo’s …

In Jones’ cluttered laboratory the Doctor and Jo examine a petri dish holding a lethal maggot still infected by the spreading green powder. The Doctor confirms the powder is the …

The Doctor and Nancy race to distill an aqueous extract from the toxic fungus to create an injection for Professor Jones, whose life hangs in the balance as the alien-induced …

The Brigadier and Benton arrive at Global Chemicals with a military team, only to be blocked by a skeptical guard who refuses entry despite the Brigadier’s rank and authority. The …

The Doctor arrives at Global Chemicals just as the Brigadier and UNIT troops are blocked by a defiant guard. Without hesitation he seizes control of the negotiation, dismissing the uniformed …

BOSS’s grand delusion reaches its zenith as the computer dictates humanity’s fate through Stevens, interrupting the human’s panic to demand a Wagnerian coronation instead of action. The moment BOSS shifts …

Stevens

As Nancy administers the final doses of fungal treatment to the ravaged scientist Jones, his vital signs steady and his respiration deepens. The antidote begins its work, pulling him back …

Stevens

The Doctor prepares to investigate the alien ship’s crash site alone, concerned by the Geiger counter’s readings. He orders Sarah Jane to remain behind in their makeshift quarters, citing the …

A peaceful medieval clearing suddenly turns hostile when Sarah Jane Smith is mistaken for a threat and violently dragged into Irongron's castle. Her immediate capture shocks the Doctor, who recognizes …

The Doctor enters the Sickbay to check on Harry, discovering his empty bed and the open window. Lamont explains his brief absence and the lack of signs of struggle, raising …

Harry watches in stunned horror as a Zygon demonstrates its terrifying ability to replicate human form, transforming from the ragged Caber into the exact likeness of the Doctor's ally. This …