Fabula
Object
Object

Hostile Action Displacement System (HADS)

The Hostile Action Displacement System (HADS) triggers inside the TARDIS after a Kroton attacks, forcing automatic dematerialization to evade crystalline aggression. It displaces the ship to a nearby cliffside, prompting Zoe's relief and questions. The Doctor confirms its activation and explains the protocol's function with casual familiarity, demonstrating the TARDIS's built-in defenses without manual intervention.
2 appearances

Purpose

Triggers automatic dematerialization to displace the TARDIS away from hostile attacks

Significance

Highlights TARDIS self-preservation amid Kroton threat, relieves crew tension, and shifts focus to reassuring Gonds and rescuing Jamie, advancing the mission against crystalline invaders

Appearances in the Narrative

When this object appears and how it's used

2 moments
S6E21 · The Krotons Part 3
TARDIS escapes via HADS protocol

The Hostile Action Displacement System (HADS) is the focal point of this event, as its automatic activation saves the TARDIS from the Kroton attack. The Doctor explains its function to Zoe, framing it as a standard defensive protocol ('if I remember to set the HADS'). The HADS's role here is twofold: it demonstrates the TARDIS's self-sufficient nature, reducing the Doctor's need for constant vigilance, and it serves as a narrative device to transition the scene from defensive maneuvering to proactive mission planning. Its activation is a technical triumph, but the Doctor's casual tone downplays its significance, reinforcing his role as a seasoned traveler accustomed to such dangers.

Before: Armed and ready, awaiting potential hostile action (Kroton attack).
After: Deactivated post-dematerialization, having successfully evaded the threat.
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S6E21 · The Krotons Part 3
Doctor redirects Zoe to mission priority

The Hostile Action Displacement System (HADS) is the critical plot device that drives this event. Triggered by the Kroton's attack, HADS automatically dematerializes the TARDIS, saving the Doctor and Zoe from immediate danger. The Doctor briefly explains HADS to Zoe, revealing his foresight in enabling the TARDIS's self-preservation protocols. This system not only serves as a defensive mechanism but also underscores the Doctor's strategic thinking and his reliance on technology to navigate perilous situations. Its activation sets the stage for the Doctor and Zoe's next steps, reinforcing the urgency of their mission.

Before: Active and ready to trigger in response to hostile actions, as set by the Doctor.
After: Deactivated after successfully displacing the TARDIS from the Kroton's attack.
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