Episode TwoSeries Episode Number: 345
World Premiere: Sat 14 Apr 1973 - 5:53pm BST [BBC One] (United Kingdom)
Running Time: 24 minutes 8 seconds
10.70 Million (UK)
Chart Position: 18 () (UK)
Recorded on Tue 23 Jan 1973 in TC4
Archive State: PAL 2 VT
The Doctor recovers from his coma and befriends a Thal expedition but is captured by the Daleks and taken to their base. Then a second Thal expedition arrives with terrible news...