Todd and the Doctor receive a telepathic invitation to visit the Kinda's blind matriarch and her ward in a cave. Meanwhile, Hinkle is finally set to reduce the dome to its "base chemical constituents" but stops to relax and build a toy city. Tegan is out cold after the snake tattoo of the Mara leaves her arm to possess Aris, giving Aris voice and, through it, the ability to lead his people to their destruction.

The TARDIS returns Tegan to Heathrow Airport: Tall trees, peaceful, clear skies, thriving vegetation and a touch of sulfur in the air. Obviously the TARDIS is a little out of date (about three hundred years or so), but upon looking around the Doctor finds there's more amiss than his navigational controls, all arising after a recent comet crash that was not on Earth's schedule.