The Invasion of Time

097 – The Invasion of Time
Doctor Who serial
The Sontarans invade the Citadel of the Time Lords
Cast
Doctor Tom Baker (Fourth Doctor)
Companions Louise Jameson (Leela) John Leeson (Voice of K-9 Mk. I)
Others John Arnatt — Chancellor Borusa Milton Johns — Castellan Kelner Chris Tranchell — Andred Charles Morgan — Gold Usher Hilary Ryan — Rodan Dennis Edwards — Lord Gomer Reginald Jessup — Lord Savar Michael Harley — Bodyguard Eric Danot — Castellan Guard Christopher Christou — Guard Max Faulkner — Nesbin Ray Callaghan — Ablif Michael Mundell — Jasko Gai Smith — Presta Stan McGowan, Tom Kelly — Vardans Derek Deadman — Stor Stuart Fell — Sontaran
Production
Directed by	Gerald Blake
Written by	"David Agnew" (Graham Williams and Anthony Read)
Script editor	Anthony Read
Produced by	Graham Williams
Executive producer(s)	None
Incidental music composer	Dudley Simpson
Production code	4Z
Series	Season 15
Length	6 episodes, 25 minutes each
Originally broadcast	4 February – 11 March 1978
Chronology
← Preceded by Followed by → Underworld The Ribos Operation

Doctor Who and the Invasion of Time

Author	Terrance Dicks
Cover artist	Andrew Skilleter
Series	Doctor Who book: Target novelisations
Release number	35
Publisher	Target Books
Publication date	21 February 1980
ISBN

The Invasion of Time is the sixth and final serial of the 15th season in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 4 February to 11 March 1978. This serial features the final appearance of Louise Jameson as the companion Leela.

The Fourth Doctor returns to Gallifrey after meeting a group of aliens in space, bringing Leela and K-9 with him. He is behaving very strangely and when the Chancellory Guard under their Commander, Andred, arrive at the Panopticon Chamber to interrogate him, the Doctor demands to be taken to Chancellor Borusa, who is now in charge of the Time Lords. The Doctor claims the vacant Presidency of Gallifrey having previously been a candidate and, after the demise of Chancellor Goth, is now automatically elected. Under law this request cannot be refused. The Doctor then chooses a Presidential chamber and asks it be decorated with lead lining throughout. Shortly afterward a ceremony is held to swear him in as President of Gallifrey and he is presented with the various trappings of office. However, when the circlet connecting him to the Matrix, repository of all Time Lord knowledge, is placed on his head, the Doctor collapses in pain.

The Doctor is taken to the Chancellory to rest and recover. When he regains consciousness he reminds the Time Lords that no aliens are allowed on Gallifrey and instructs that Leela be expelled from the Capitol Citadel, where she will have to fend for herself in the wastelands. She tries to avoid banishment, but the Doctor is serious about enforcing it. The Doctor now retreats to the TARDIS where he shares a secret plan with K-9, but is obviously very concerned about the situation he has found himself in. He is planning to aid an invasion of Gallifrey itself and to this end sets about destroying the transduction barrier that defends the planet from external threat. K-9 sets about this task while the Doctor returns to the Panopticon, the great hall of the Time Lords, and laughs cruelly as three alien beings start to materialise.