Guests of Madame Guillotine

This act plunges Barbara and Susan into immediate and profound peril, establishing their unjust capture and swift condemnation to execution by guillotine. Their desperate pleas for a defense are summarily dismissed by the Judge, underscoring the arbitrary and brutal nature of the revolutionary justice system. The subsequent separation from Ian intensifies their isolation and vulnerability within the grim confines of the Conciergerie. Barbara's defiant act of slapping the predatory Jailer, who attempts to extort her, highlights her unwavering spirit and resistance, yet it also provokes his vindictive nature, resulting in their confinement to a particularly squalid and unpleasant "special" cell. This initial confrontation immediately sets a tone of high stakes and personal courage against overwhelming odds. Simultaneously, a critical secondary plot thread begins with Ian's imprisonment. He finds himself sharing a cell with Webster, a gravely wounded man who, on the brink of death, begins to entrust Ian with a mission of national importance. Far removed from the prison's walls, the Doctor, having been knocked unconscious, awakens to the aid of young Jean-Pierre. Upon learning of his friends' capture and their grim destination, the Doctor, despite Jean-Pierre's urgent warnings about the immense dangers of Paris, resolutely commits to their rescue. This decision firmly establishes his primary objective and sets him on a collision course with the city's perils. The act concludes with Barbara and Susan, despite their initial despair and the horrific conditions, identifying a potential escape route—a damp patch in their cell wall suggesting a sewer connection—a spark of hope and proactive resistance against their seemingly inevitable fate.

This act significantly escalates the challenges and deepens the individual struggles of the protagonists, pushing them towards desperate measures and revealing critical new information. Within their squalid cell, Barbara and Susan, clinging to a fragile hope, embark on the arduous and physically demanding task of digging through the damp patch in their wall, believing it could lead to a sewer and eventual freedom. This laborious effort, undertaken with a makeshift tool, underscores their resilience but also highlights the immense physical and emotional toll of their imprisonment, further exacerbated by Susan's wavering morale. Their progress is soon and dramatically halted by the invasion of rats, a visceral and demoralizing setback that crushes Susan's spirit and forces them to abandon their immediate escape attempt. Concurrently, Ian's storyline reaches a pivotal moment as Webster, nearing his last breath, fully articulates his dying mission. He charges Ian with the perilous task of locating James Stirling, an English agent in France, whose intelligence is crucial for England's preparedness against an impending French threat. Webster provides specific contacts—Jules Renan and the rendezvous point 'Le Chien Gris'—before succumbing to his injuries, solidifying Ian's commitment to this dangerous new objective. Meanwhile, the Doctor's journey towards Paris encounters a significant and immediate obstacle. He is forcibly conscripted into hard labor by a tyrannical Overseer, a direct impediment to his rescue mission. This development forces the Doctor to confront a new, personal threat, requiring him to employ his intellect to overcome this unexpected diversion. The act effectively interweaves these distinct but equally perilous narrative threads, showcasing the mounting pressure and the individual resolve of each character as they navigate their increasingly dangerous circumstances.

This act brings the narrative threads to a critical juncture, marked by both strategic triumphs and the immediate threat of execution. The Doctor, demonstrating his characteristic ingenuity, orchestrates a clever deception to free himself and the conscripted workers from the Overseer. By faking an eclipse and then a treasure discovery, he distracts the Overseer, subdues him, and allows the laborers to flee, regaining his freedom and momentum towards Paris. This sequence showcases the Doctor's ability to turn dire situations to his advantage through wit rather than force. Back at the prison, the arrival of LeMaitre introduces a new layer of authority and unpredictability. LeMaitre's review of the execution list leads to a surprising twist: Ian is unexpectedly spared, his name crossed off the list, creating a divergence in the fates of the imprisoned companions. However, this reprieve does not extend to Barbara and Susan. The Jailer, under LeMaitre's orders, escorts them from their cell, explicitly stating they are part of the "batch for the guillotine." The act concludes with Barbara and Susan being led away to their imminent execution, their escape attempt thwarted, while the Doctor, now free and closer to Paris, races against time, unaware of their immediate peril, setting up a dramatic cliffhanger for the next installment. This pivotal moment leaves the audience with heightened tension, as the Doctor's success in freeing himself contrasts sharply with the immediate and grave danger faced by his friends, underscoring the urgent race against time that defines the episode's core conflict.