Space pirates have been destroying navigation beacons in the search for the precious agonite.
The TARDIS materialises on board a navigation beacon in the far future. The beacon is split up into several sections by a group of space pirates in an attempt to steal it, and the Doctor and his companions are separated from the TARDIS..
The Doctor, Jamie and Zoe become caught in a conflict between the International Space Corps, led by General Hermack and Major Warne, and the space pirates led by the murderous Craven.
The ISC believes that the eccentric mining pioneer Milo Clancey is to blame. Craven has a base on the planet Ta, assisted by his ex-partner's, Dom, daughter Madeleine Issigri. Unbeknown to her he is holding Dom captive.
Discovering Craven's treachery, Madeleine helps to bring him to justice. The Doctor and his companions are given a lift back to the TARDIS by Clancey in a rickety spacecraft.
Regular castJamie McCrimmon: Frazer Hines; Zoe Heriot: Wendy Padbury;
Guest castGeneral Nicolai Hermack: Jack May; Major Ian Warne: Donald Gee; Technician Penn: George Layton; Maurice Craven: Dudley Foster (1,3-6); Dervish: Brian Peck; Lieutenant Sorba: Nik Zaran (1,4-5); Space Guard: Anthony Donovan (1); Milo Clancey: Gordon Gostelow (2-6); Madeleine Issigri: Lisa Daniely (2-6); Pirate Guard: Steve Peters (4-6); Dom Issigri: Esmond Knight (5-6);
Uncredited cast: Double for the Doctor: Tom Laird; Issigri HQ Secretary: Valerie Stanton; Pirate Guards: John Caeser, Edward Cogdell, Leslie Conrad, Bill Richards; Space Corps Technicians: Terry Nelson, Tom Segal, Neville Simons; Space Corps Guards: Alf Coster, Tony Hutchins, Clive Rogers, Peter Roy, Neville Simons, Ray Turton; Walks-Ons and Non-Speaking Artists: Derek Chafer, James Haswell, Paul Kirby;
|BBC 1||238||Episode 1||Sat 8 March 1969||5:15 pm - 5:40 pm||5.8M||96th|
|BBC 1||239||Episode 2||Sat 15 March 1969||5:15 pm - 5:40 pm||6.8M||74th|
|BBC 1||240||Episode 3||Sat 22 March 1969||5:15 pm - 5:40 pm||6.4M||75th|
|BBC 1||241||Episode 4||Sat 29 March 1969||5:15 pm - 5:40 pm||5.8M||83rd|
|BBC 1||242||Episode 5||Sat 5 April 1969||5:15 pm - 5:40 pm||5.5M||70th|
|BBC 1||243||Episode 6||Sat 12 April 1969||5:15 pm - 5:40 pm||5.3M||98th|
This programme does not have any outside filming
Ealing Television Film Studios; Lime Grove Studio D; Television Centre Studio 4; Television Centre Studio 6;
Bloopers and mistakes
This programme has no bloopers or mistakes. It's probably not perfect, just that they haven't been found or pointed out yet.
Notes and trivia
The story title, etc, is in black on a white caption slide, the inverse to normal.
The incidental music score includes vocals by Mary Thomas.
This programme has no other working titles, or they have not been yet been entered.