Dragonfire is a serial in the British science fiction television series Doctor Who, which was first broadcast in three weekly parts from November 23 to December 7 1987. This serial marked the introduction of Sophie Aldred as the Doctor's new companion, Ace and the departure of Bonnie Langford as Melanie Bush.
The Seventh Doctor and Mel arrive at Iceworld on the planet Svartos, where they struggle to overcome the icy Kane.
Iceworld is a space trading colony on the dark side of the planet Svartos. It is a mysterious place of terror and rumour ruled by the callous and vindictive Kane, who buys supporters and employees and makes them wear his mark iced in to their flesh. Kane?s body temperature is so cold that one touch from him can kill. In Kane?s lair is a vast cryogenic section where mercenaries and others are being frozen and stored, with their memories wiped for future unquestioning use as part of an army; including a freezer cabinet into which Kane deposits himself