Object

Cybermen's Zed-Bomb

Highly radioactive weapon positioned in the Radiation Room, where Ben, Barclay, Dyson, and Haines don protective suits to arm it under Cybermen orders. Cybermen avoid direct contact, delegating handling to humans due to its lethal emissions. Ben exploits this by luring a Cyberman inside, collapsing it from exposure while he seizes its weapon, barricading the group inside for defense.

3 appearances

Purpose

Destroy Earth via detonation orchestrated by Cybermen

Significance

Exposes Cybermen's radiation vulnerability, granting Ben tactical leverage to stall activation, shift power dynamics, and spark human resistance amid the invasion

Appearances in the Narrative

When this object appears and how it's used

3 moments

S4E8 · The Tenth Planet Part 4

Ben exposes Cybermen’s radiation weakness

The Zed-bomb is the central weapon in the Cybermen's plan to destroy Earth, and its presence in the Radiation Room drives the entire event. The team's despair stems from their belief that they've been tricked into arming it, and Ben's gambit hinges on exploiting the Cybermen's reluctance to handle it directly. The bomb's high radioactivity makes it a double-edged sword: a tool for the Cybermen's destruction but also a lethal hazard for anyone in the Radiation Room. Its symbolic weight as a weapon of mass destruction looms over the scene, reinforcing the stakes of Ben's high-risk plan.

Before: Partially armed in the Radiation Room, surrounded by the team in protective suits. The Cybermen have delegated its handling to the humans due to its lethal radioactivity.

After: Still in the Radiation Room but now secured by Ben's team, who use it as a defensive stronghold. The Cybermen's inability to handle it directly remains a critical weakness.

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S4E8 · The Tenth Planet Part 4

Ben lures Cyberman into radiation trap

The Zed-bomb is the central weapon in the Cybermen's plan to destroy Earth, positioned in the Radiation Room where Ben and the others are forced to handle it under Cybermen orders. Its presence looms over the group, symbolizing the immediate threat they face. The bomb's detonation is the Cybermen's ultimate goal, and Ben's plan to defend the Radiation Room is directly aimed at preventing its activation. The bomb's high radioactivity makes it a double-edged sword: a tool for destruction in the Cybermen's hands, but also a potential weapon against them due to their vulnerability to radiation.

Before: Positioned in the Radiation Room, armed and ready for detonation under Cybermen supervision. The group is in the process of handling it, as ordered.

After: Still in the Radiation Room, but now under the group's defensive control. The Cybermen are unable to access it due to the group's barricade and the radiation's lethal effects on them.

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S4E8 · The Tenth Planet Part 4

Ben exploits Cybermen's radiation vulnerability

The Cybermen's Zed-bomb is the central threat in this event, intended to destroy Earth. Its presence looms over the group, driving their desperation and Ben's strategic thinking. The bomb's potential detonation is the primary reason the group cannot escape the Radiation Room, as Ben argues that staying puts them in the safest position to prevent its activation. The bomb's role as a weapon of mass destruction underscores the high stakes of the situation and the urgency of Ben's plan.

Before: Positioned in the Radiation Room, armed and ready for detonation under Cybermen orders. The group is in the process of handling it, though they are unaware of its full capabilities until the Doctor's warning.

After: Still in the Radiation Room, but its detonation is temporarily prevented by the group's occupation of the room. The Cybermen are unable to set it off while the group defends the space, buying time for Mondas to collapse.

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