(Behind them, with a creaking noise, a trapdoor opens in the floor of the rock. (Pointing.) (Several DALEKS start to glide into their time machine. (The DOCTOR gesticulates and answers with a component from the machine clenched between his teeth, making the reply completely undecipherable. ARIDIUS
(Outside the TARDIS, the DOCTOR and BARBARA lie relaxing in the sun. ARIDIUS
(VICKI and IAN arrive on another rocky ridge. BARBARA tries to speak to the muffled up DOCTOR. BARBARA: Then they're on their way here! Cylindrical in shape, the doorway is in a wedge "cut" into the machine. DOCTOR: The Daleks! Exterminate them! Get with it! It's a Time and Space Visualiser. Like the TARDIS, it would appear to be bigger on the inside than the outside as the number of DALEKS that enter would appear to be too normal for its outside dimensions.) Oh, the trail just ends. SECOND DALEK: Our time machine has been completed. Stop whistling! Suddenly a patch of sand moves and the DOCTOR and BARBARA sit up from where he has been completely covered by the last night's storm.) The travellers walk out.) They cannot escape! Turn it off! What's this? You heard their orders - we are to be exterminated!
Plan: A: The travellers; Q: Who is taken prisoner by the Mechonoids? A: theMoroks' museum; Q: Where did the travellers get the Time-Space Visualiser? A: their own time machine; Q: What do the Daleks have that the Doctor and his companions need to escape? A: the TARDIS; Q: What do the Doctor and his companions flee in? A: The chase; Q: What begins on the desert planet Aridius? A: stopping-off points; Q: What does the chase take in a number of? A: a spooky haunted house; Q: What is actually a futuristic fun-fair attraction? A: a futuristic fun-fair attraction; Q: What is the haunted house on Aridius actually? A: the jungle planet Mechanus; Q: Where do the Daleks try to kill the Doctor's party? A: the Mechonoids - robots; Q: Who takes the Doctor's party prisoner? A: landing sites; Q: What were the Mechonoids sent to prepare for colonists who never arrived? A: human colonists; Q: Who were the Mechonoids sent to prepare landing sites for? A: Steven Taylor; Q: Who is the stranded astronaut who has been the Mechonoids' captive for the past two years? A: The Daleks; Q: Who is on the Doctor's trail? A: a fierce battle; Q: What does the Daleks and Mechonoids engage in that ends in their mutual destruction? A: The Doctor; Q: Who reluctantly helps Ian and Barbara to use the Daleks' time machine to return home? Summary: The travellers learn from the Time-Space Visualiser taken from theMoroks' museum that Daleks equipped with their own time machine are on their trail with orders to exterminate them. They flee in the TARDIS. The chase begins on the desert planet Aridius and takes in a number of stopping-off points, including a spooky haunted house which is actually a futuristic fun-fair attraction. Eventually both time machines arrive on the jungle planet Mechanus, where the Daleks try to infiltrate and kill the Doctor's party with a robotic double of him. The travellers are taken prisoner by the Mechonoids - robots sent some fifty years earlier to prepare landing sites for human colonists who never arrived - and meet Steven Taylor, a stranded astronaut who has been the Mechonoids' captive for the past two years. The Daleks and the Mechonoids engage in a fierce battle which ends in their mutual destruction. The Doctor's party seizes this opportunity to escape. The Doctor reluctantly helps Ian and Barbara to use the Daleks' time machine to return home.