(When the DOCTOR and STEVEN get inside and the effect wears off, they return to their old selves and ages. DOCTOR: (In a very old voice.) He tries throwing the gun at the Dalek. Once again, I - Mavic Chen - Guardian of the Solar System - have helped the Daleks with their conquest plan. SARA: Our only plan is to destroy the Daleks. There is no use in all of us taking risks.
Plan: A: Missing episode; Q: What is the name of the episode that was supposed to be in the year 4000? A: the year 4000; Q: In what year did the Daleks conspire to conquer the Solar System? A: treachery; Q: What is at the highest levels of the Daleks' scheme? A: a weapon; Q: What is the Daleks using to destroy the fabric of time? A: catastrophe; Q: What can only the Doctor and his friends prevent? A: no guarantee; Q: Is there a guarantee that the Doctor and his friends will escape with their lives? Summary: Missing episode In the year 4000, the Daleks conspire to conquer the Solar System. Their scheme involves treachery at the highest levels and a weapon capable of destroying the very fabric of time. Only the Doctor and his friends can prevent catastrophe - and there is no guarantee they will escape with their lives...