S7E10
Tragic
Written by Malcolm Hulke
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Doctor Who and The Silurians Part 6

When a deadly virus threatens humanity, the Doctor must race against time to find a cure, while also navigating a potential war between humans and the awakened Silurians, ancient reptilian inhabitants of Earth, with the fate of both species hanging in the balance.

A deadly virus breaks out, rapidly spreading and causing widespread panic and death. The Doctor, along with Liz Shaw and the Brigadier, investigates the source of the disease, soon discovering its connection to the Silurians, an ancient race of reptiles who predate humanity on Earth. The Silurians, awakened from hibernation, intend to reclaim their planet, and the virus is their weapon to wipe out humanity.

The Doctor works tirelessly to find a cure for the virus while simultaneously trying to prevent an all-out war between humans and Silurians. The Brigadier, representing UNIT, favors a military solution, securing cave entrances with troops. The Doctor, however, believes co-existence is possible, remembering that one Silurian helped him acquire a sample to find a cure for the disease.

The situation escalates as the virus spreads rapidly, with cases appearing in London and even abroad. A scientist, Doctor Lawrence, refuses to believe in the epidemic. He is revealed to be infected, becomes irrational, and dies after attacking the Brigadier. The virus claims the life of Masters, who spreads infection throughout London before dying. The Doctor faces numerous setbacks as he tries various drugs, his morale declining along with the increasing death toll. Liz also faces challenges, feeling the effects of an antibiotic injection.

Meanwhile, the Silurians, led by a young and aggressive member, solidify their plan to eradicate humanity and reclaim the Earth. They monitor the humans' efforts to find a cure and prepare for an attack. A Silurian scientist warns of the Doctor's intelligence and potential. A skirmish erupts in the caves as soldiers investigating a missing comrade are attacked and killed by the Silurians. The Silurians decide to take the offensive, burning through the rock to launch a full-scale attack from their base.

Finally, after relentless work, the Doctor discovers the cure for the virus. With time running out as the Silurians prepare to strike, the cure is tested, proving successful. Even as news arrives that the Silurians have broken out of their base, the Doctor prepares to disseminate his cure, hoping to avert global disaster amid the escalating conflict.


Events in This Episode

The narrative beats that drive the story

31
Act 1

The episode opens with the Doctor and Brigadier at Wenley Hospital, where a patient has died from an "alien disease." The Brigadier orders a quarantine, while the Doctor returns to the laboratory to work on a cure. Liz Shaw assists, administering prophylactic injections, including to the reluctant Doctor. They learn of several new infections among UNIT personnel and civilians, including Miss Dawson and an ambulance man. Crucially, Doctor Lawrence, a skeptical scientist, and Masters, a civilian, are missing. Masters, infected, evades capture and boards a train to London, carrying the disease with him. Simultaneously, in the Silurian control room, a new, aggressive Junior Silurian leader takes charge, dismissing human capabilities. However, a Silurian scientist warns of the Doctor's intelligence and the potential for a cure. Back at the human base, Doctor Lawrence confronts Liz, vehemently denying the existence of an epidemic and refusing inoculation. The Brigadier, while deploying troops to guard cave entrances, debates with the Doctor about the possibility of co-existence with the Silurians, despite the Doctor's reminder that one Silurian helped him obtain a sample for the cure. The act establishes the dual threats: the rapidly spreading virus and the impending conflict with the Silurians, with Masters' escape marking a critical point of no return for containment.

Scene 2
UNIT’s containment unravels as virus spreads

The Doctor and Liz Shaw work urgently in the research station lab, administering prophylactic injections to UNIT personnel while the Doctor awaits critical equipment to identify the alien bacterium. The …

UNIT Research Station Laboratory 5 characters 6 connections
Liz discovers missing personnel and escalating infection risks

The Doctor and Liz Shaw discuss the limited effectiveness of prophylactic antibiotics while preparing for further testing. Liz insists the Doctor receive an injection despite his reluctance, revealing his vulnerability …

Wenley Moor District Hospital 6 characters 6 connections
Doctor Admits Uncertainty About Cure

The Doctor’s vulnerability surfaces as he confesses to the Brigadier that he cannot guarantee a cure for the alien virus, exposing the precariousness of their mission. Liz insists on inoculating …

Wenley Moor District Hospital 6 characters 6 connections
Liz reveals Masters’ infected train to London

The Doctor and Liz argue over the Doctor’s reluctance to take prophylactic injections, revealing his vulnerability and the urgency of the situation. Liz insists on inoculating him, highlighting the shared …

Wenley Moor District Hospital 6 characters 6 connections
Liz’s Loyalty Tested by UNIT’s Demands

In the high-stakes tension of a lab under siege, Liz Shaw faces a brutal crossroads when the Brigadier’s rigid orders to prioritize UNIT’s containment protocols clash with the Doctor’s urgent …

UNIT Research Station Laboratory 3 characters 6 connections
Act 2

Act Two intensifies the escalating crisis on both fronts. Masters arrives in London, visibly ill, and collapses at Marylebone Station, having spread the virus throughout the crowded transport hub. The police launch a frantic but ultimately unsuccessful search for him. Simultaneously, the conflict with the Silurians turns violent. A UNIT private soldier, Wright, is killed by a Silurian in the caves, leading Sergeant Hart and Hawkins to investigate. Hart is also zapped, and Hawkins engages the Silurian in a firefight, confirming direct hostile action. The Junior Silurian leader, observing human defenses, recognizes the Doctor's importance and orders his recapture, acknowledging the Doctor's role in potentially finding a cure. Back at the research station, the Doctor works tirelessly, testing numerous drugs against the virus, but without success. He requests a blood specimen from an infected person, highlighting his desperation. The situation in London deteriorates rapidly, with mass collapses and deaths at Marylebone Station, culminating in Masters' death. The Doctor's morale visibly declines, admitting a loss of confidence. Doctor Lawrence, now exhibiting severe symptoms, bursts into the conference room, irrational and violent, accusing the Brigadier of conspiracy before collapsing and dying. News arrives that the virus has spread internationally, with cases reported in Paris, underscoring the global catastrophe unfolding.

Act 3

Act Three brings a crucial breakthrough amid the rising chaos and impending war. After relentless work and numerous setbacks, the Doctor finally achieves a breakthrough, exclaiming "Eureka!" as he identifies a working antidote in the laboratory. He immediately moves to test its efficacy in practice. The antidote is administered to an infected ambulance man in the sickbay, and Liz Shaw confirms its success, noting a drop in temperature and a return to normal pulse. The Doctor prepares to transcribe the complex formula for mass production, a race against time to save humanity. However, the Silurian threat simultaneously reaches its peak. In their base, the Junior Silurian leader and the scientist initiate their full-scale offensive, using their third eyes to burn through the rock, aiming to penetrate the human base. Sergeant Hawkins reports to the Brigadier that the Silurians have killed Sergeant Hart and are now "advancing everywhere," signifying a full-blown attack. As the Brigadier presses the Doctor for the formula, fielding calls from the Ministry and even the press, the fate of both species hangs precariously. The act concludes with the Doctor finalizing the cure's formula as the Silurians launch their assault, setting the stage for a desperate fight for survival.