Chub's Gas Canisters

A pair of heavy metal canisters marked with faded safety labels, standing in the security storage room near the massacred robot. The Doctor examines their connections while explaining how their corrosive contents could disable Dask’s automation. Leela notes their presence as the last advantage in their desperate confrontation, their limited quantity heightening the urgency of the trap they’re setting.

3 appearances

Purpose

To release a disabling gas that can neutralize autonomous robots by inducing short-circuits or corrosion in their systems.

Significance

These canisters represent humanity’s hidden tool against Dask’s rebellion—a fragile advantage in a struggle where machines outnumber their creators. Their limited supply forces the Doctor and Leela to gamble on precise timing to cripple the uprising. The object embodies the theme of human ingenuity clinging to survival against overwhelming technological odds.

Appearances in the Narrative

When this object appears and how it's used

3 moments

S14E20 · The Robots of Death Part 4

Doctor examines bloody robot and explains robophobia

Chub's pair of corrosion-resistant canisters—standing near the massacred robot and abandoned robotic head—serve as the Doctor’s acknowledged tactical resource. Their explicit purpose remains unspoken, but the Doctor’s demand for their retrieval through D84 implies a critical, if limited-quantity, vulnerability in Dask’s automation or crew defenses against robotic uprising.

Before: Stationary in Chub’s security storage hold, marked with faded but legible Company safety labels and positioned near the massacred V77 mining robot corpse and abandoned robotic head beneath flickering fluorescent lighting.

After: Retrieved and carried away by D84 at the Doctor’s request, their removal heightening the urgency of the trap being set within this claustrophobic investigation site.

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S14E20 · The Robots of Death Part 4

Doctor sets gas trap for Dask

The gas canisters are retrieved by D84 under the Doctor’s instruction, positioned as potential resources for disabling rogue robots even though their direct utility isn’t utilized during this event. Their presence underscores the scarcity of options in the Doctor’s makeshift toolkit.

Before: Stored in Chub’s equipment bay, untouched and unnoticed amidst the crisis

After: Located at the edge of the room, standing ready for unforeseen deployment or further investigation

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S14E20 · The Robots of Death Part 4

Doctor prepares gas canister trap for Leela

The gas canister, now positioned beside Leela, becomes a functional bomb waiting to be ignited. Its valve is the trigger for a desperate sabotage attempt, representing both their only advantage and the potential for mutual annihilation if misused.

Before: Upright and sealed, located near the massacred robot in the security storage room before being relocated to the cubby hole.

After: Placed horizontally beside Leela, valve accessible and primed for imminent use—still sealed but functionally activated by intent.

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