The newly regenerated Doctor (Tom Baker), assisted by Sarah, Harry and the Brigadier, has to track down the theft of the components for a powerful new laser gun, and the death of a prominent politician. Sarah investigates the mysterious Think Tank, where it becomes clear that robot K-1 is being misused by its political extremist masters and the Doctor has to prevent the robot from being used to start an atomic war. Tom Baker's first story as the Doctor.

DVD EXTRAS
Interactive menus, Bonus footage, Commentary (Tom Baker, Elisabeth Sladen, Terrance Dicks and producer Barry Letts), Other documentaries ('Are Friends Electric?': full-length documentary covering Tom Baker's debut; Featurette: 'The Tunnel Effect' - Bernard Lodge talks about creating the opening 'never-ending tunnel' sequence for Tom Baker's era), Image gallery, Production notes, Episode of Blue Peter broadcast from the Robot set; Radio Times listings (in pdf format)
Soundtrack Languages
Dolby Mono: English
Technical Details
Certification: U
Duration: 98 mins
Format: DVD
Region: 2
Aspect Ratio: 1:1.33 (4:3) Standard
Sound: Dolby Mono
Cat. No: BBCDVD2332(2 ENTERTAIN VIDEO)
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