audio stub
You may be looking for the television story.

Thin Ice is an audio play based on the unproduced story Ice Time, which was originally scheduled as one of the stories for the planned Season 27, which was supposed to air in 1990. However, the cancellation of the series made these plans moot.

This story puts to the forefront the Seventh Doctor's ulterior motive for raising up Ace: he wished to groom her for entrance into the Time Lord Academy if she was willing to join them. While the Cartmel Masterplan would have designated this as Ace's departure story and Raine Creevy's start as the new primary companion for the Doctor, the audio adaptation skewed from the original intentions of writer Andrew Cartmel and instead saw Ace decline the Doctor's offer and elect to keep travelling with him. The change in narrative allowed Big Finish Productions to keep charting its own course for Ace.

Publisher's summary[]

Moscow 1967. The Doctor and Ace have arrived behind the Iron Curtain, and the Soviet Union is seeking a new weapon that will give it mastery in the Cold War.

What is the secret of the Martian relics? As the legendary War Lord Sezhyr returns to life, the Doctor is faced with some of his oldest and deadliest enemies.

The fate of Earth – and the future of Ace – are now intertwined...


Part one[]

to be added

Part two[]

to be added

Part three[]

to be added

Part four[]

to be added







  • Hhessh considers Moscow to be cold, like his native Mars.


CD booklet interior artwork.

  • This story is one of the few stories with specific authorial intent to slot into Seven’s televised era after his actual final televised story, Survival. That is to say, set between said story and the ‘VNA era’.
  • This story shares its title with a 2017 episode of the 2005 continuation of the show, though both stories are completely unrelated.



External links[]