Season 6 episodes

No   Code   Title                    First Shown  Eps  Exists
-------------------------------------------------------------
44    2T    The Dominators            10 Aug 68    5    all
45    2U    The Mind Robber           14 Sep 68    5    all
46    2V    The Invasion               2 Nov 68    8    2,3,5-8
47    2W    The Krotons               28 Dec 68    4    all
48    2X    The Seeds of Death        25 Jan 69    6    all
49    2Y    The Space Pirates          8 Mar 69    6    2
50    2Z    The War Games             19 Apr 69    10   all

Notes

The Doctor's race are first named as the Time Lords in the War Games.

Episode Details

The Dominators

The Doctor, Zoe and Jamie arrive on the planet Dulkis for a quiet holiday but discover that it has been invaded by a race called the Dominators and their robot servants, the Quarks.
Video Release: PAL VHS BBC Video BBCV4406, Cert U

The Mind Robber

After an accident with the TARDIS, the Doctor, Zoe and Jamie are transported into a dimension where fiction rules. Here they encounter a range of fictional characters and some ominous White Robots.
Video Release: PAL VHS BBC Video BBCV4352, Cert U

The Invasion

The Doctor and Jamie investigate the disappearance of the Doctors friend, Professor Travis, and discover odd goings on in a large electronics company. Soon the Doctor and Jamie become involved with the newly formed United Nations Intelligence Taskforce (UNIT), in trying to stop a full-scale invasion of Earth by the Cybermen.
Video Release: PAL VHS BBC Video BBCV4974 (Two Tapes), Cert U

The Krotons

The crew of the TARDIS meet the primative Gonds, a simple people who learn from an alien teaching machine. After casually playing a game against Zoe (and losing), the Doctor discovers that he has aroused the Krotons from their slumbers. Stranded on the planet centuries ago, the Krotons have been asleep until the primative Gonds reach a level of development where their mental powers are great enough to allow the Krotons to restart their spaceship and travel home.
Video Release: PAL VHS BBC Video BBCV4452, Cert U

The Seeds of Death

The Ice Warriors take control of Moonbase, which is responsible for the control of the T-mat system used to deliver supplies across the world. They then use it to distribute spores that will kill mankind and make Earth suitable for their habitation.
Video Release: PAL VHS BBC Video BBCV4072, Cert U

The Space Pirates

The TARDIS materialises on a navigation beacon in deep space. One such beacon has been stolen and the investigators believe that an eccentric miner called Milo Clancey is responsible. The Doctor thinks otherwise and helps him escape to the planet Ta where they meet the pirate actually responsible for the theft...

The War Games

The Doctor, Jamie and Zoe arrive in the middle of a first world war battlefield, or so it seems. Soon however it becomes apparent that all is not as it seems and that some outside power is controlling the War Games.
Video Release: PAL VHS BBC Video BBCV4310 (Two Tapes), Cert U