Fabula
S4E18 · Identity Crisis

Susanna’s collapse reveals irreversible transformation

In Geordi’s office, Susanna’s deteriorating mental and physical state reaches a breaking point as she fixates on returning to Tarchannen Three, her desperation revealing the alien transformation’s psychological grip. When Geordi suggests medical intervention, she rejects it violently, insisting the answers lie on the planet. As she storms out, her body betrays her—trembling uncontrollably before collapsing in Main Engineering. Geordi’s attempt to catch her exposes the undeniable proof of her metamorphosis: dark blotches on her neck and fused fingers, confirming the irreversible nature of the alien infection. The moment forces Geordi to confront the urgency of his own impending fate, marking a critical escalation in the crisis. The revelation also underscores the transformation’s compulsion, as Susanna’s actions mirror those of the earlier disappeared crew members (Brevelle, Hickman, Mendez), suggesting a shared, inescapable pull toward Tarchannen Three.

Plot Beats

The narrative micro-steps within this event

1

Susanna collapses in Main Engineering, her body trembling; Geordi discovers dark blotches on her neck and that two of her middle fingers have fused together, revealing the advanced stage of her transformation.

urgency to horror ['Main Engineering']

Who Was There

Characters present in this moment

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Deeply alarmed and urgent, shifting from frustration (at Susanna’s refusal to seek help) to shock and horror as he witnesses her physical transformation. His emotional state is tinged with a growing sense of helplessness and the weight of his own potential fate.

Geordi attempts to reason with Susanna, suggesting medical intervention and urging her to take a break, but his efforts are met with resistance. He follows her as she storms out of his office, calling after her in concern. When she collapses in Main Engineering, he rushes to her side, cradling her head and witnessing the horrifying physical signs of her transformation—blotches on her neck and fused fingers. His reactions are a mix of alarm, urgency, and a dawning realization of the gravity of their situation, particularly his own impending fate.

Goals in this moment
  • Convince Susanna to seek medical help before her condition worsens.
  • Uncover the truth behind the Tarchannen Three disappearances and transformations to prevent further loss.
Active beliefs
  • Susanna’s condition is tied to Tarchannen Three and requires immediate medical and investigative attention.
  • He may be next, and time is running out to find a solution.
Character traits
Protective Urgently concerned Methodical yet emotionally reactive Empathetic Alarmed by the escalating crisis
Follow Geordi La …'s journey

Overwhelmed by a mix of panic, pain, and an inescapable pull toward Tarchannen Three. Her emotional state oscillates between frustration (at Geordi’s suggestions) and terror (as her body betrays her), culminating in a breakdown that reveals the full horror of her transformation.

Susanna’s physical and mental state unravels in Geordi’s office as she fixates on Tarchannen Three, her desperation manifesting in restless pacing, trembling, and a violent rejection of medical help. She abruptly shuts off the monitor, claiming the images hurt her eyes, and insists on returning to the planet, her speech becoming increasingly erratic. Her collapse in Main Engineering—revealing dark blotches on her neck and fused fingers—exposes the irreversible alien transformation, mirroring the fate of the earlier disappeared crew members. Her actions are compulsive, driven by an unseen force pulling her toward Tarchannen Three.

Goals in this moment
  • Return to Tarchannen Three to uncover the truth about her condition and the disappearances.
  • Resist medical intervention, believing it is futile or unnecessary.
Active beliefs
  • The answers to her transformation lie on Tarchannen Three, not in medical treatment or logs.
  • Her condition is irreversible, and she is being compelled by an external force.
Character traits
Compulsive Desperate Agitated Physically deteriorating Psychologically unhinged
Follow Susanna's journey
Supporting 2

Shocked and alarmed by Susanna’s sudden collapse and the visible signs of her transformation. Their emotional state reflects a mix of professional concern for a crewmate and personal horror at the unknown threat.

The Engineering Crew Supernumeraries react with surprise as Geordi and Susanna draw attention in Main Engineering. They gather around Susanna after her collapse, their expressions a mix of concern and shock as they witness the dark blotches on her neck and her fused fingers. Their presence underscores the public and urgent nature of the crisis, as well as the crew’s collective alarm at the unfolding events.

Goals in this moment
  • Assist Geordi in stabilizing Susanna and assessing her condition.
  • Contain the situation and prevent further escalation of the crisis.
Active beliefs
  • Susanna’s condition is serious and potentially contagious, requiring immediate action.
  • The crew must support Geordi and follow his lead in addressing the emergency.
Character traits
Concerned Startled Supportive Alert
Follow Engineering Crew …'s journey

N/A (The Enterprise Computer does not possess emotions.)

The Enterprise Computer responds to Geordi’s command to resume playback of the Tarchannen footage, displaying the grainy images on the wall monitor. It operates mechanically, providing no emotional or interpretive input, but its role in replaying the footage serves as a catalyst for Susanna’s distress and eventual collapse. The computer’s impersonal precision contrasts sharply with the emotional turmoil unfolding around it.

Goals in this moment
  • Execute commands from authorized personnel (e.g., Geordi) to retrieve and display data.
  • Maintain operational efficiency and accuracy in sensor and data retrieval tasks.
Character traits
Mechanical Impersonal Precise Unemotional
Follow Enterprise Computer's journey

Objects Involved

Significant items in this scene

4
Geordi's Engineering Office Console

Geordi’s Engineering Console serves as a secondary research tool in this event, though its direct involvement is limited. Susanna interacts with it briefly, studying the image of the spindly Tarchannen plant before shutting it off in distress. The console’s role is functional, providing access to mission records and visual data, but it is ultimately overshadowed by the wall monitor and Susanna’s physical collapse. Its presence underscores the investigative nature of their work, even as it fails to yield answers.

Before: Active and operational, displaying the image of the …
After: Turned off by Susanna, left inactive as the …
Before: Active and operational, displaying the image of the spindly Tarchannen plant. Susanna is using it to study the plant before her collapse.
After: Turned off by Susanna, left inactive as the focus shifts to her physical and emotional breakdown. The console’s data remains untapped, symbolizing the futility of their research efforts thus far.
Geordi's Office Wall Monitor

The wall monitor in Geordi’s office plays a pivotal role in this event, first displaying grainy footage of Tarchannen Three from the teaser, which Susanna abruptly shuts off, claiming it hurts her eyes. Later, the monitor resumes playback at Geordi’s command, but its content serves as a trigger for Susanna’s emotional and physical unraveling. The monitor’s visuals—combined with the image of the spindly Tarchannen plant—act as a catalyst for her collapse, symbolizing the inescapable pull of the planet and the contagion’s psychological grip. Its mechanical display contrasts with the raw emotion of the scene, highlighting the cold, unfeeling nature of the data they are grappling with.

Before: Displaying paused footage of Tarchannen Three, with Susanna …
After: Turned off by Susanna after she collapses, leaving …
Before: Displaying paused footage of Tarchannen Three, with Susanna studying an image of a spindly plant. The monitor is functional and operational, serving as a research tool for Geordi and Susanna.
After: Turned off by Susanna after she collapses, leaving the screen dark. The monitor’s role in the event is complete, but its content lingers as a haunting reminder of the planet’s hold over her.
Image of a Spindly Tarchannen Plant

The image of the spindly Tarchannen plant on the console acts as a visual trigger for Susanna’s distress. She studies it intently before abruptly shutting off the monitor, claiming it hurts her eyes and that she can no longer think clearly. The plant’s eerie, alien appearance symbolizes the unknown threat lurking on Tarchannen Three, and its role in the scene is to reinforce the planet’s psychological and physical hold over her. The image serves as a metaphor for the contagion’s insidious nature, creeping into her mind and body.

Before: Displayed on the console, studied by Susanna as …
After: Erased from the screen as Susanna shuts off …
Before: Displayed on the console, studied by Susanna as part of her research into the Tarchannen Three mission. The image is static and unchanging, a piece of visual evidence.
After: Erased from the screen as Susanna shuts off the monitor. The image’s impact lingers, however, as a symbol of the planet’s pull and the contagion’s progression.
Tarchannen Footage

The Tarchannen Footage from the teaser is replayed on the wall monitor at Geordi’s command, serving as a visual reminder of the away team’s mission and the mysteries of the planet. The footage, though silent, reinforces the urgency of their investigation and the stakes of the disappearances. Susanna’s reaction to it—shutting it off in distress—highlights the psychological toll of the mission and the contagion’s grip on her. The footage acts as a narrative bridge, connecting past events to the present crisis and underscoring the inescapable nature of Tarchannen Three’s influence.

Before: Stored in the Enterprise’s databases, accessible via Geordi’s …
After: Played briefly before being shut off by Susanna. …
Before: Stored in the Enterprise’s databases, accessible via Geordi’s command. The footage is grainy and silent, a record of the away team’s search for clues on Tarchannen Three.
After: Played briefly before being shut off by Susanna. The footage’s content remains unresolved, mirroring the unresolved nature of the mission and the contagion’s mystery.

Location Details

Places and their significance in this event

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Engineering (USS Enterprise-D)

Main Engineering becomes the climactic location for Susanna’s collapse, shifting the event from a private breakdown to a public crisis. The bustling, open space of Main Engineering contrasts sharply with the confined tension of Geordi’s office, and the sudden gathering of the Engineering Crew Supernumeraries underscores the urgency of the moment. Susanna’s collapse in this highly visible location forces the issue into the open, making her transformation undeniable and escalating the stakes for the entire crew. The location’s functional role as the heart of the Enterprise’s operations is subverted by the horror of the moment, as the crew’s focus shifts from engineering tasks to the unfolding medical and existential emergency.

Atmosphere Chaotic and urgent, with a sudden shift from routine operational bustle to stunned silence and …
Function The primary operational hub of the Enterprise, where engineering tasks are typically performed. In this …
Symbolism Represents the vulnerability of the Enterprise and its crew, even in the most secure and …
Access Open to authorized engineering personnel, with restricted access to non-essential crew members. The location is …
The distant thrum of the warp core, usually a steady background noise, now feels ominous and intrusive. Engineering consoles and monitors, momentarily ignored as the crew gathers around Susanna. The flickering overhead lights, casting long shadows as the crew huddles in concern. The cold, metallic surfaces of the engineering equipment, contrasting with the warmth of the crew’s hurried movements.
Geordi's Office (within Main Engineering)

Geordi’s office serves as the primary setting for the escalating tension in this event. The confined space amplifies the emotional and physical unraveling of Susanna, as she paces restlessly and fixates on the images of Tarchannen Three. The office’s walls, though soundproofed, cannot contain the growing crisis, and the hum of the Enterprise’s systems contrasts sharply with the raw emotion unfolding within. The location’s intimacy makes Susanna’s collapse feel inevitable, as if the office itself is a pressure cooker for her transformation. When she storms out, the office becomes a symbol of failed containment, its quiet corners now haunted by the horror of what has transpired.

Atmosphere Tense and claustrophobic, with a growing sense of dread. The hum of the Enterprise’s systems …
Function A private research hub where Geordi and Susanna attempt to uncover clues about the Tarchannen …
Symbolism Represents the illusion of control and safety aboard the Enterprise, which is shattered as Susanna’s …
Access Restricted to authorized personnel, particularly Geordi and his engineering team. The office is a semi-private …
The hum of the Enterprise’s warp core and systems, creating a steady, mechanical backdrop. Flickering monitor displaying grainy footage of Tarchannen Three, casting an eerie glow over the room. Narrow, confined space with consoles and monitors lining the walls, emphasizing the claustrophobic atmosphere. Geordi’s chair, left empty as he follows Susanna out of the office.

Organizations Involved

Institutional presence and influence

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Starfleet

Starfleet’s influence is palpable in this event, though its representation is indirect. The crisis unfolding—Susanna’s transformation and the compulsion to return to Tarchannen Three—directly challenges Starfleet’s protocols for crew safety, planetary investigations, and medical emergencies. Geordi’s attempts to persuade Susanna to seek help from Doctor Crusher reflect Starfleet’s emphasis on medical intervention and institutional support, while Susanna’s rejection of these protocols highlights the contagion’s ability to override even the most deeply ingrained Starfleet values. The event also underscores the organization’s broader failure to contain the threat, as the contagion continues to spread despite Starfleet’s investigative efforts.

Representation Through institutional protocols (e.g., Geordi’s suggestion to see Doctor Crusher) and the implied authority of …
Power Dynamics Starfleet’s authority is both exercised and challenged in this event. Geordi, as a senior officer, …
Impact The event highlights the fragility of Starfleet’s institutional structures in the face of an unknown, …
Internal Dynamics The crisis exposes a tension between Starfleet’s emphasis on protocol and the unpredictable nature of …
Contain the contagion and prevent further crew transformations by adhering to medical and investigative protocols. Uphold Starfleet’s mission of exploration and safety, even in the face of unknown threats. Through institutional protocols (e.g., medical evaluations, command authority, and investigative procedures). Via the collective actions of its crew members, who are trained to follow Starfleet’s guidelines even in high-stress situations. Through the symbolic weight of the organization’s values, which Geordi invokes in his attempts to reason with Susanna.

Narrative Connections

How this event relates to others in the story

What led here 3
Causal

"Geordi and Susanna deciding to review old mission records directly leads them to reviewing said records in Geordi's office."

Susanna and Geordi hypothesize mission trigger
S4E18 · Identity Crisis
Escalation

"Susanna's initial hand tremors escalate to a full-blown collapse and physical transformation (fused fingers), demonstrating the accelerating nature of the alien infection."

Susanna’s transformation and Geordi’s vow
S4E18 · Identity Crisis
Escalation

"Susanna's initial hand tremors escalate to a full-blown collapse and physical transformation (fused fingers), demonstrating the accelerating nature of the alien infection."

Geordi’s protective vow in crisis
S4E18 · Identity Crisis
What this causes 2
Causal

"Susanna's collapse and physical transformation lead to her being in Sickbay, where Beverly and Picard observe her condition."

Susanna’s Transformation Revealed
S4E18 · Identity Crisis
Causal

"Susanna's collapse and physical transformation lead to her being in Sickbay, where Beverly and Picard observe her condition."

Susanna’s Desperate Confession
S4E18 · Identity Crisis

Key Dialogue

"SUSANNA: We're wasting our time."
"GEORDI: I think... we should go see Doctor Crusher..."
"SUSANNA: Forget Crusher... forget your logs. Tarchannen's down there, Geordi. It's waiting for us. That's where we should go."