In the final days of Earth, The Tardis lands on a massive spaceship carrying the last members of the human race to a new home beyond the solar system. The humans are not out of danger, however, as a deadly plague emerges from the most unlikely of sources; the common cold carried by the Doctor's companion, Dodo.

Put on trial for their lives, the Tardis crew must find a way to repair the damage they have unwittingly caused - and face up to the devastating consequences...

Special Features:

• Commentary by Peter Purves (Steven), Michael Imison (director), and Toby Hadoke (Moths Ate My Doctor Who Scarf)
• All's Well That Ends Well - A new documentary exploring the influence of H.G. Wells on Doctor Who
• One Hit Wonder - What gives a monster staying power?
• Riverside Story Peter Purves returns to Riverside Studios, Hammersmith, home to numerous 1960s Doctor Who stories
• Radio Times Billings
• Production Information Subtitles
• Programme Subtitles
• Photo Gallery
• Coming Soon Trailer
• Digitally remastered picture and sound quality