Season 6 (1968–69)

The Second Doctor
1966–1969

The Dominators

5 episodes

The Mind Robber

5 episodes (20 mins each)

The Invasion

8 episodes

The Krotons

4 episodes

The Seeds of Death

6 episodes

The Space Pirates

6 episodes

The War Games

10 episodes

* The Invasion(episodes 1 & 4 missing. Recreated using animation.), The Space Pirates(episodes 1 & 3-6 missing)