Part TwoSeries Episode Number: 628
World Premiere: Sat 12 Jan 1985 - 5:22pm GMT [BBC One] (United Kingdom)
First Broadcast: Thu 28 May 2015 - 8:00pm EDT [Retro TV]
Running Time: 44 minutes 29 seconds
7.20 Million (UK)Appreciation Index: 65 (UK)
Chart Position: 104 () (UK)
Recorded on Fri 06 Jul 1984 in Television Centre 6
BBC Genome Project: see entry
On Telos, the Doctor is reintroduced to the Cyber Leader and meets the Cryons, the planet's original inhabitants who will go to any lengths to get their world back!
When sold to places like the USA, a four-part edit of the story was made available; the cliff-hanger was created at the point where the Cryons inform Peri that they will not help her to rescue the Doctor.
In 2014 when the story was broadcast by Horror Channel, they created their own cliff-hanger at about the same point, but a scene earlier where Lytton informs Bates he has a safe route to the landing bay, provided by the Cryons.