Part TwoSeries Episode Number: 459
World Premiere: Sat 8 Oct 1977 - 6:04pm BST [BBC One] (United Kingdom)
First Broadcast: Wed 11 Jun 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 25 minutes 13 seconds
7.30 Million (UK)
Chart Position: 55 () (UK)
Recorded on Sun 10 Apr 1977 in TC6
As the Doctor's condition worsens, he instructs Leela to pilot the TARDIS to the Bi-Al Foundation. The only chance of curing the Doctor is to literally get inside his head.