When a damaged spaceship containing beautiful humanoid creatures called Axons lands on Earth, the Doctor, Jo and UNIT are sent to investigate. The Axons offer the gift of Axonite, which would end world famine - but what secrets are the Axons hiding on board their ship? And why is the Doctor's old enemy the Master involved?
This upgraded DVD release features improved digital remastering and added bonus features.
Special features include: commentary, a look back at the making of the story, a look at the locations used, an interview with director Michael Ferguson, the entirety of the earliest surviving Doctor Who studio recording, a weekend with actor John Levene, deleted and extended scenes, photo gallery, subtitle production notes, Radio Times listings (PDF).