S1E6
Tragic with moments of hard-won resilience
Written by Terry Nation
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The Survivors

Stranded on a radioactive planet, the Doctor and his companions must find a cure for radiation sickness while navigating the treacherous landscape, evading the malevolent Daleks, and uncovering the secrets of the Thal people to survive.

After venturing into the deserted city on the irradiated planet, the Doctor, along with his companions Ian, Barbara, and Susan, find themselves in dire straits. They quickly realize they are suffering from radiation sickness, a consequence of the planet's high levels of fallout from a past neutronic war. The Doctor admits he misled them about the TARDIS's fluid link being broken just to explore the city, a decision that now endangers their lives as they need the TARDIS to travel to a place where they can receive treatment. However, without mercury for the fluid link (which turns out to be a lie), they are trapped.

While searching for Barbara, who got separated earlier, the group is captured by the Daleks, metallic pepper-pot-like creatures who wield deadly weapons. Ian attempts to flee and is struck by a Dalek weapon, paralyzing his legs temporarily. They are imprisoned in a detention cell where they reunite with Barbara. The Doctor is taken to a control room, where the Daleks interrogate him, mistaking them for Thals, the mutated survivors of the war who live outside the city. The Daleks believe the Thals possess a drug that grants them immunity to radiation.

The Doctor cleverly proposes that one of them retrieve a box of drugs left near the TARDIS, hinting that it might be the cure they all desperately need. The Daleks agree, seeing this as an opportunity to acquire the drug for themselves. Despite his weakened state, Ian volunteers, but Susan insists on going, fearing for his safety and knowing the combination to unlock the TARDIS.

As Susan ventures into the petrified forest in search of the drugs, she faces the dangers of the unknown mutated creatures, the Thals, while the Daleks monitor her movements, hoping she will lead them to the Thal settlement. Back in the detention cell, the Doctor's condition deteriorates rapidly. Ian and Barbara also grow weaker, but Ian recovers the use of his legs and prepares to escape. The episode concludes with Susan running through the forest, terrified, and Ian calling out to her, hoping she will return in time to save them all, while the Daleks plan to let the prisoners die to take the cure for themselves.


Events in This Episode

The narrative beats that drive the story

18
Act 1

The episode opens with Ian, Susan, and the Doctor meticulously searching for Barbara within the deserted, silent city. Their initial concern for Barbara quickly shifts to a more profound dread when Susan discovers a ticking Geiger counter. The needle, alarmingly past the danger point, confirms their worst fears: they are all suffering from severe radiation sickness, a consequence of the planet's fallout from a past neutronic war. The Doctor, cornered by the grim reality, confesses his earlier deception about the TARDIS's broken fluid link, admitting he fabricated the excuse to indulge his curiosity and explore the city, a revelation that ignites Ian's fury. Their heated argument over the Doctor's recklessness and the immediate need to find Barbara versus returning to the TARDIS is violently interrupted. A group of menacing Daleks, appearing as metallic pepper-pot-like creatures, ambush and capture them. Ian's desperate attempt to escape is met with a paralyzing ray from a Dalek weapon, leaving him helpless. Imprisoned in a stark detention cell, they are reunited with a weakened Barbara, completing the group's shared predicament. The Doctor, his own health rapidly deteriorating, delivers the grim prognosis: without immediate treatment, they will all succumb to the radiation, setting a desperate, life-or-death struggle at the heart of their survival.

Act 2

Separated from his companions, the Doctor endures a tense interrogation by the Daleks in their control room. The Daleks, revealing their own history as survivors of the neutronic war, mistakenly identify the Doctor and his group as Thals, the mutated inhabitants of the surface, whom they believe possess a vital immunity-granting drug. The Doctor, quick-witted despite his deteriorating health, seizes this misunderstanding. He proposes a desperate gambit: one of his companions could retrieve a box of "drugs" he claims was left near the TARDIS, knowing the Daleks' desperate desire for a cure will make them agree. Back in the detention cell, the Doctor relays the perilous plan to Ian and Barbara. Despite his own severe weakness and partial paralysis, Ian volunteers for the dangerous mission. However, Susan, demonstrating remarkable resolve and knowledge of the TARDIS's intricate defense mechanisms, insists she must go, understanding that only she can properly unlock the ship. With the Doctor's condition worsening rapidly, Susan departs with a Dalek escort, venturing into the unknown, radiation-scarred forest. Unbeknownst to the companions, the Daleks' true, sinister intentions are revealed in their control room: they plan to monitor Susan, hoping she will lead them to the Thal settlement, and then allow the prisoners to die, seizing the "cure" for their own use, thus escalating the betrayal and peril.

Act 3

As Susan plunges deeper into the petrified jungle, facing unseen dangers and the ominous sounds of thunder and lightning, the Doctor's condition in the detention cell becomes critically dire, his fever spiking and breathing labored. Barbara, equally afflicted, struggles with overwhelming weakness and aches. Amidst this escalating despair, a crucial shift occurs: Ian, who had been paralyzed, begins to regain full sensation and movement in his legs, offering a fragile but potent glimmer of hope. Driven by a desperate need to act, he attempts to reach the cell door, only to be momentarily overwhelmed by a wave of pain, a stark reminder of his weakened state. His cries for Susan to hurry underscore the rapidly dwindling time. Simultaneously, Susan is shown running terrified through the jungle, clearly fleeing an unknown, unseen threat, her mission becoming increasingly perilous. In the Dalek control room, the antagonists coldly confirm the Doctor's imminent death and their unwavering resolve to let the remaining prisoners perish, their rangerscopes having lost track of Susan. The episode concludes with Ian's urgent, desperate plea for Susan to return in time, juxtaposed with Susan's frantic flight, leaving the fate of the companions hanging precariously on her success and survival, and the Daleks poised to betray them.