Object
Taltarian Airlock Explosives Detonator
Aridians arm this device to trigger the Taltarian airlock's destruction at high suns, flooding passages to entomb rampaging Mire Beasts. Malsan and Rynian explain the plan to the Doctor and Barbara, who learn Ian and Vicki sit trapped inside. The group races toward it as Prondyn warns of imminent detonation, Barbara panics, and the Doctor negotiates a halt, turning the mechanism into a pivotal rescue target amid Dalek pursuit.
3 appearances
Purpose
Detonate the Taltarian airlock to seal off Mire Beasts
Significance
Traps Ian and Vicki, forcing Doctor's group into desperate alliance with Aridians and amplifying urgency against dual threats of beasts and Daleks
Appearances in the Narrative
When this object appears and how it's used