Callback
→ Polo dismisses Ping-Cho’s evidence against Tegana
Callback
→ Doctor confronts Tegana with Barbara’s handkerchief
Callback
→ Ian discovers the hidden door in …
Causal
→ Ian discovers the hidden door in …
Character Continuity
→ Susan and Ping-Cho plot Tegana’s exposure
Character Continuity
→ Doctor reveals Ping-Cho’s TARDIS exposure
Foreshadowing
→ Ian discovers the hidden door in …
Foreshadowing
→ Polo dismisses Ping-Cho’s evidence against Tegana
Narratively Follows
→ Doctor reveals Ping-Cho’s TARDIS exposure
Narratively Follows
→ Ian discovers the hidden door in …
Thematic Parallel
→ Susan reveals TARDIS key location to …
Thematic Parallel
→ Susan and Ping-Cho plot Tegana’s exposure
Callback
← Polo Confiscates the TARDIS Key
Callback
← Doctor defies Polo to seek Cave
Callback
← Tegana reveals Noghai’s plot to Malik
Callback
← Ping-Cho’s Hashashin tale reveals hidden threats
Callback
← Polo’s fractured leadership and search party
Callback
← Barbara’s eavesdropping exposes the plot
Causal
← Polo’s Desperate Gamble on Tegana
Causal
← Doctor quietly defies Polo’s order
Causal
← Doctor learns cave location from spy
Causal
← Tegana’s Inconsistent Alibi and Polo’s Blind …
Causal
← Doctor defies Polo to seek Cave
Character Continuity
← Barbara’s Unheeded Warning to Ian
Character Continuity
← Tegana’s Inconsistent Alibi and Polo’s Blind …
Character Continuity
← Polo Confiscates the TARDIS Key
Character Continuity
← Doctor quietly defies Polo’s order
Character Continuity
← Doctor learns cave location from spy
Escalation
← Tegana’s Inconsistent Alibi and Polo’s Blind …
Escalation
← Polo’s fractured leadership and search party
Escalation
← Polo’s Desperate Gamble on Tegana
Escalation
← Polo Confiscates the TARDIS Key
Narratively Follows
← Polo confirms the cave’s location
Narratively Follows
← Doctor quietly defies Polo’s order
Thematic Parallel
← Doctor reveals Hashashin knowledge
Thematic Parallel
← Polo Demands Proof of Water’s Safety