|Edition: || UK (VHS)|
|When: ||July 1985|
|Format: ||1 x VHS|
Note: Movie format. Released on VHS and Betamax. There are two versions of the VHS release: the original July 1985 release had the catalogue no. BBCV 2019, while the second (BBCV 4072) followed in July 1987 after video certification was made mandatory in the UK. The contents, cover blurb and cover design are identical — the only difference being that the latter version features the "U" video certificate, as shown in picture.
Deadly Ice Warriors, exploding seed pods and a lethal fungus are among the terrors in store in this feature-length space adventure. It is the 21st Century and Earth is totally dependent on T-Mat, a revolutionary form of instant travel. When the system breaks down the Doctor and friends make a hazardous journey to the relay station on the moon only to find that it has fallen into the hands of the Ice Warriors who plan to invade Earth. Using T-Mat the Ice Warriors transport seed pods to Earth which burst, disgorging a deadly Martian fungus. This spreads rapidly extracting vital oxygen from the atmosphere. Can the Doctor outwit the evil Ice Warriors and destroy the fungus in time to save a dying world?