Fabula
Object
Object

UNIT Heavy-Duty Low-Loader (Mars Probe 7 Transport)

Specialized flatbed vehicle used exclusively for towing the sealed Mars Probe 7 capsule from the landing site to the Space Centre. Hijacked by Carrington and Grey in The Ambassadors of Death Part 2 and later reclaimed by the Doctor.
3 appearances

Purpose

Transports the Mars Probe 7 capsule from landing site to Space Centre

Significance

Serves as the contested prize in the ambush sequence, enabling Carrington and Grey's sabotage attempt while showcasing the Doctor's resourcefulness in recovery; its hijacking and reclamation expose conspiracy depth and propel UNIT from investigation to direct confrontation.

Appearances in the Narrative

When this object appears and how it's used

3 moments
S7E13 · The Ambassadors of Death Part 2
Carrington and Grey hijack the capsule

The UNIT low-loader serves as the primary vehicle for transporting the alien capsule. It is hijacked by Carrington and Grey during the ambush but is later reclaimed by the Doctor after he immobilizes the conspirators. The low-loader’s role as a mobile fortress for the capsule makes it a critical target for both sides, as control of the vehicle equates to control of the capsule itself.

Before: Driven by UNIT personnel, carrying the alien capsule, and part of the convoy en route to the Space Centre.
After: Driven by the Doctor, carrying the alien capsule, and heading back toward UNIT-controlled territory.
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S7E13 · The Ambassadors of Death Part 2
Doctor outmaneuvers traitors with Bessie

The UNIT Low-Loader is the vehicle used to transport the stolen Mars Probe 7 Capsule. After the ambush, Carrington and Grey drive it away, but the Doctor intercepts them by feigning a breakdown with Bessie. He traps the conspirators using Bessie’s anti-theft system, then drives off in the low-loader with the capsule, reclaiming it for UNIT.

Before: Hijacked by Carrington and Grey, being driven away from the landing site.
After: Recovered by the Doctor, now en route to the Space Centre with the capsule.
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S7E13 · The Ambassadors of Death Part 2
UNIT’s failed contact attempt and capsule hijacking

The UNIT low-loader is the vehicle transporting the Mars Probe 7 capsule from the landing site to the Space Centre. It is hijacked by Carrington and Grey during the ambush, who use it to escape with the capsule. The Doctor reclaims the low-loader by trapping Carrington and Grey with Bessie’s anti-theft device, driving off with the vehicle and the capsule. The low-loader’s role in the event is pivotal, as it serves as both the target of the hijacking and the means by which the Doctor ultimately regains control of the situation.

Before: Being driven by UNIT personnel, carrying the Mars Probe 7 capsule, and part of a convoy protected by outriders and the Brigadier.
After: Under the Doctor’s control, still carrying the Mars Probe 7 capsule, and en route to the Space Centre. Carrington and Grey are left stranded, their hands trapped to Bessie.
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