Object

Moonbase Storeroom Cybermen Tunneling Breach

Jagged subterranean hole carved by Cybermen through the Moonbase storeroom wall, serving as their initial infiltration point. Topples supply bags during creation, later exposed in the control room as part of a broader sabotage strategy involving contaminated food and faked air pressure drops. Abandoned by Cybermen in favor of new tactics.

4 appearances

Purpose

Subterranean entry point for Cybermen to infiltrate moonbase undetected and sabotage supplies

Significance

Marks Cybermen's abandoned initial strategy, reveals base vulnerability, scatters crew resources, and forces tactical pivot to exploit other weaknesses amid escalating invasion

Appearances in the Narrative

When this object appears and how it's used

4 moments

S4E24 · The Moonbase Part 2

Hobson Accuses Doctor of Sabotage

The probe control antenna is the linchpin of this event, as its sabotage provides Hobson with the "evidence" he needs to accuse the Doctor. Sam’s discovery of the missing parts—revealed through the antenna’s diagnostics—triggers Hobson’s paranoia and sets in motion the chain of events that leads to the Doctor and Polly’s detention. The antenna’s damage is both a technical failure and a narrative device, as it symbolizes the base’s vulnerability to external threats. Its repair becomes a mission fraught with danger, as Jules and Franz are unwittingly sent into a Cybermen ambush.

Before: Functional but damaged, with critical parts missing due to Cybermen sabotage. The antenna is non-operational, contributing to the gravitron’s malfunction.

After: Still damaged, but Hobson orders Jules and Franz to repair it. The antenna’s condition remains a critical issue, as its failure directly impacts the gravitron’s performance.

View full event

S4E25 · The Moonbase Part 3

Cybermen seize control room and declare Earth's extinction

Cyberman 1 reveals the Cybermen's infiltration route through the hole in the moonbase storeroom wall, exposing the moonbase's vulnerability. The hole, described as a 'simple hole' cut through the lunar surface, allowed the Cybermen to contaminate the food supply and gain undetected entry. Its mention underscores the Cybermen's tactical cunning and the moonbase's structural weaknesses, which they exploited to achieve their genocidal goals.

Before: Concealed by the Cybermen after their infiltration, with debris used to mask the breach.

After: Exposed by Cyberman 1 as the entry point for their infiltration, confirming the moonbase's vulnerability.

View full event

S4E25 · The Moonbase Part 3

Cybermen reveal Earth's extinction plan

The hole in the moonbase storeroom wall is the physical evidence of the Cybermen's infiltration, symbolizing their tactical cunning and the humans' blind spots. Cyberman 1 smugly describes it as 'a simple hole,' mocking the humans for failing to detect it earlier. Hobson's realization—'A hole! That explains those sudden air pressure drops we've been recording'—highlights how the Cybermen exploited mundane operational anomalies to gain entry. The hole is more than a structural breach; it represents the humans' failure to anticipate the Cybermen's unconventional tactics, leaving them vulnerable from the start.

Before: Concealed by the Cybermen after their entry, with debris used to mask the jagged breach. Its existence was undetected until Cyberman 1's revelation.

After: Exposed and acknowledged as the point of infiltration. The humans now understand how the Cybermen gained access, but this knowledge comes too late to prevent the takeover. The hole remains a symbol of their strategic failure.

View full event

S4E25 · The Moonbase Part 3

Cybermen reveal infiltration and extinction plan

The hole in the moonbase storeroom wall is revealed by Cyberman 1 as the method of infiltration. He explains that the Cybermen cut through the storeroom, contaminating the food supply and creating a subterranean breach. This hole explains earlier air pressure anomalies and underscores the Cybermen's methodical, insidious strategy to infiltrate the moonbase undetected.

Before: Concealed by the Cybermen after their infiltration, scattered bags restacked to hide the breach.

After: Revealed by Cyberman 1 as the method of infiltration, explaining earlier air pressure anomalies.

View full event