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.
- Region Code:
- Region 2
- Duration:
- 98 minutes
- Extras:
- Language(s): English, Interactive Menu, Scene Access, Screen ratio 1:1.33, Dolby Mono, Dolby Digital 5.1, Bonus Footage, Commentary: Tom Baker, Elisabeth Sladen, Terrance Dicks and producer Barry Letts, 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)