Callback
→ Tavius justifies Barbara’s enslavement
Causal
→ Nero exposes the Doctor’s deception
Causal
→ Barbara comforts a dying woman in …
Causal
→ Villa invasion and Barbara’s abduction
Character Continuity
→ Barbara’s defiance escalates Tavius’s bid
Character Continuity
→ Nero exposes the Doctor’s deception
Character Continuity
→ Vicki exposes the Doctor’s deception risk
Foreshadowing
→ Nero exposes the Doctor’s deception
Callback
← Vicki and Barbara reveal their outsider …
Callback
← Doctor abandons Ian and Barbara
Callback
← Didius blocks sale of Barbara
Callback
← Ian’s forced separation from Barbara
Callback
← Slave traders identify and target companions
Causal
← TARDIS crashes into perilous arrival
Causal
← Ian and Barbara Ambushed at Villa
Causal
← Slave traders identify and target companions
Causal
← Doctor abandons Ian and Barbara
Causal
← Vicki and Barbara reveal their outsider …
Character Continuity
← Vicki’s Impatience and the Lurking Threat
Character Continuity
← Slave traders identify and target companions
Character Continuity
← Doctor abandons companions for Rome
Escalation
← Ian’s forced separation from Barbara
Escalation
← Vicki’s Impatience and the Lurking Threat
Escalation
← Ian and Barbara Ambushed at Villa
Escalation
← Ian sold while Barbara remains captive
Escalation
← TARDIS crashes into perilous arrival
Foreshadowing
← Slave traders identify and target companions
Foreshadowing
← Vicki’s Impatience and the Lurking Threat
Narratively Follows
← Ian and Barbara Ambushed at Villa
Thematic Parallel
← Vicki and Barbara reveal their outsider …
Thematic Parallel
← Villa invasion and Barbara’s abduction