A thrilling adventure in Time and Space!
The Doctor, Crystal and Jason have survived monsters, Madame Delilah and Mrs T, but then their former enemy Karl calls them back to the Bar Galactica. The mercenary has a cryptic message concerning Ultima Thule, where fabled treasure and a threat to the universe await...
The journey requires entering another dimension, where old enemies – and a brand new adversary – lie in wait…
Written By: Terrence Dicks
Directed By: Jason Haigh-Ellery
Colin Baker (The Doctor), Claire Huckle (Crystal), Noel Sullivan (Jason)
Producer David Richardson
Script Editor Jacqueline Rayner
Executive Producers Jason Haigh-Ellery and Nicholas Briggs