Part OneSeries Episode Number: 665
World Premiere: Mon 23 Nov 1987 - 7:37pm GMT [BBC One] (United Kingdom)
First Broadcast: Sun 15 Jan 1989 - 11:00pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 1 seconds
5.50 Million (UK)Appreciation Index: 61 (UK)
Chart Position: 80 () (UK)
Recorded in Television Centre 1
On Iceworld, the Doctor and Mel meet Ace, who has found herself there after a timestorm. While Ace nearly joins Kane's mercenaries, the Doctor and Glitz explore the ice caverns.