The Third Doctor deals with the Master and a foe of a previous incarnation.
Captain Yates
A mysterious force threatens the Doctor...in all his incarnations!
The Fourth Doctor. "The Android Invasion," Final Episode.
The Third Doctor. "Planet of the Spiders," Episode Five.
The Third Doctor. "Planet of the Spiders," Episode Three.
The Third Doctor. "Planet of the Spiders," Episode Two.
The Third Doctor. "Planet of the Spiders," Episode One.
The Third Doctor. "Invasion of the Dinosaurs," Final Episode.
The Third Doctor. "Invasion of the Dinosaurs," Episode Five.
The Third Doctor. "Invasion of the Dinosaurs," Episode Four.
