Callback
→ Doctor’s Uninvited Confrontation
Causal
→ Doctor proposes sewer infiltration
Causal
→ Turner Reveals Cyberman Overrun
Causal
→ Ambush during evacuation reveals Vaughn’s betrayal
Causal
→ UNIT scrambles for missile counterattack
Causal
→ Zoe proposes depolarizer countermeasures
Character Continuity
→ Doctor proposes sewer infiltration
Escalation
→ Turner Reveals Cyberman Overrun
Escalation
→ Doctor proposes sewer infiltration
Escalation
→ Doctor’s Uninvited Confrontation
Foreshadowing
→ UNIT scrambles for missile counterattack
Foreshadowing
→ Doctor proposes sewer infiltration
Foreshadowing
→ Zoe’s Calculations Trigger Cyber-Fleet Annihilation
Thematic Parallel
→ Brigadier authorizes emergency helicopter extraction
Thematic Parallel
→ Doctor proposes sewer infiltration
Callback
← Cybermen revelation halts flirtation
Callback
← Brigadier dismisses Cybermen evidence
Callback
← Isobel’s remorse and UNIT’s rescue mission
Causal
← Vaughn Tests the Cerebraton’s Power
Causal
← Turner descends into Cyberman tunnels
Causal
← Turner confirms interception failure
Character Continuity
← Brigadier dismisses Cybermen evidence
Character Continuity
← Cybermen revelation halts flirtation
Emotional Echo
← UNIT’s Grenade Ambush Fails Against Cybermen
Emotional Echo
← Cybermen revelation halts flirtation
Escalation
← Brigadier dismisses Cybermen evidence
Escalation
← Turner confirms interception failure
Escalation
← Cybermen Ambush in the Sewers
Escalation
← Cybermen revelation halts flirtation
Escalation
← Watkins’ Assassination Attempt and Vaughn’s Invulnerability
Escalation
← UNIT authorizes high-risk Cyberman rescue
Thematic Parallel
← UNIT authorizes high-risk Cyberman rescue
Thematic Parallel
← Brigadier dismisses Cybermen evidence
Thematic Parallel
← Isobel’s remorse and UNIT’s rescue mission