The Doctor and Scott's crew

As Kyle and Scott's team review the expedition site, they activate a specialized scanner designed to detect life through electrical activity. The device's frustrating silence deepens the mystery of the …

Lieutenant Scott seizes control of the mission’s final preparation phase, ordering the military team to gear up for the descent into the underground fossil quarry. His authoritative command forces cohesion …

Nyssa’s precise recalibration of the console contrasts with Tegan’s self-deprecating admission of incompetence around alien controls, while Adric’s reckless demand to plot a course to Terradon through E-space ignites a …

Lieutenant Scott’s team conducts a scanning sweep at an active fossil quarry when Walters detects multiple anomalous lifeform readings. The anomaly escalates when Walters identifies an ectopic heartbeat signature in …

Lieutenant Scott’s paranoia, fueled by the mounting deaths around him, reaches a boiling point when he physically accosts the Doctor. The confrontation erupts from Scott’s conviction that the Doctor’s group …

As Tegan and Nyssa clear rubble to reveal a hidden hatch in the cavern wall, Scott orders the Doctor’s group to open it. Despite the Doctor’s protests, Nyssa complies and …

Kyle’s discovery of Doctor Khan’s overalls ties the present carnage to her past expedition. The Doctor’s calm identification of the androids as the unseen enemy contrasts sharply with Scott’s violent …

Adric and the Doctor descend into the cavern to disable a bomb meant to irreversibly poison Earth’s atmosphere. The Doctor identifies the release mechanism and urges Adric to withdraw, but …

The Doctor’s impulsive hatch opening triggers the bomb’s arming sequence, flipping the mission from stealth to desperation. With seconds evaporating and Tegan shepherding remaining survivors toward the TARDIS, Scott’s frantic …

As the cavern’s flickering lights betray erratic power flow, the Doctor works with desperate precision to neutralise the bomb threatening the survivors. His magnetic drone clings to the device’s housing …

The Doctor announces the need to depart for Sector Sixteen to trace the bomb's remote signal, aware of the escalating Cyberman threat. His companions push back—teasing exhaustion after a long …

Ringway presses Berger about the deteriorating conditions aboard the freighter, citing unexplained personnel losses and plummeting morale. He challenges Berger’s complacency regarding the crew’s simmering dissatisfaction, warning of potential mutiny …

Briggs re-enters the bridge flanked by officers, his exhaustion from delays evident as he dismisses concerns about three missing crewmen. Ringway presses about the unexplained disappearances, but Briggs deflects with …

Captain Briggs asserts control by departing the bridge under red alert, delegating security duties to Ringway. His abrupt dismissal and Ringway’s simmering frustration over perceived belittlement create tension. Ringway’s decision …

The Doctor seizes control of the confrontation in the cargo hold, ordering Ringway to visually confirm his assessment of the approaching figures rather than acting on unfounded accusations. His insistence …

Captain Briggs seizes full control of the freighter bridge by ordering armed personnel to the high walkway and withholding pulse rifles from the crew, reinforcing her authoritarian rule. Her resistance …

The Doctor reveals the presence of a smuggled bomb in the freighter’s cargo hold, a Cybermen plot intended to strike Earth directly. Briggs responds by doubling down on her refusal …