TEXT: 5:30pm - 5:55pm [SCENE_BREAK] 1: INT. PASSAGEWAY (The DOCTOR, SUSAN and IAN stand in front of the latticed wall, IAN holding BARBARA'S travel dial.) IAN: This is Barbara's travel dial. DOCTOR: Mmm. IAN: Look! There's blood on it! DOCTOR: Yes, I can't imagine why Barbara left of her own free will. SUSAN: No, surely she'd wait for us. IAN: (Insistent.) Of course she would! DOCTOR: Well it seems there's only one conclusion. Whatever it is lives behind that door (He points at the latticed wall behind them.) must've taken her by force. IAN: Well let's get inside! (He rushes up to the doors.) DOCTOR: No no no no, Don't let us be precipitous. IAN: Doctor, there's blood on this strap. That means she's hurt, maybe badly. We can't argue now, we must get inside! DOCTOR: Yes, very well, very well, but I say... (IAN manages to force the doors open.) DOCTOR: (Protesting.)...I'm sure it's a mistake! (They stumble through and immediately a blinding white light and screeching noise fills the air. They clutch at their heads in agony.) [SCENE_BREAK] 2: INT. CHAMBER (When the light and noise die down they find themselves in a short avenue of statues and the room can be seen beyond. It is full of vases with exotic plants, statues, drapes and luxurious furniture. A huge carving of a bearded face dominates the rear wall. They look around in wonder.) IAN: (Astonished.) I don't believe it! (BARBARA is lying on a sofa dressed in Grecian type robes being waited on by two similarly robed female attendants. When she sees the others she sits up.) BARBARA: Ian! Susan! I'm glad you're here
SUMMARY:
The TARDIS arrives on the planet Marinus on an island of glass surrounded by a sea of acid. The travellers are forced by the elderly Arbitan to retrieve four of the five operating keys to a machine called the Conscience of Marinus, of which he is the keeper. These have been hidden in different locations around the planet to prevent them falling into the hands of the evil Yartek and his Voord warriors, who plan to seize the machine and use its originally benevolent mind-influencing power for their own sinister purposes.