(Into radio.) (The DOCTOR and JO run up to them.) CONTROLLER: He will attempt to return to his own time zone. DALEKS' CHAMBER
(The CONTROLLER stands before the DALEKS.) Their empire is expanding.
Plan: A: the Daleks' base; Q: Where do the guerrillas infiltrate to rescue the Doctor and Jo? A: their own time; Q: Where do the guerrillas want the Doctor and Jo to return to? A: history; Q: What do the guerrillas want the Doctor and Jo to alter? A: the 20th century; Q: What century is about to be plunged into a Third World War? Summary: The guerrillas infiltrate the Daleks' base to rescue the Doctor and Jo and ask them to return to their own time and alter history before the 20th century is plunged into a Third World War.