Classic Who S10 • Serial 3 · (6 episodes)
Frontier in Space
The Third Doctor and Jo are caught in the escalating tension between planets Earth and Draconia and discover that the Master and the Daleks are secretly working to provoke the two into all-out war.
6 Episodes:
The Doctor and Jo land on a spaceship in the far future as it is attacked by Ogrons, which the human crew see as Draconians. The Doctor and Jo are taken to Earth as spies.
The Doctor and Jo are taken to Earth, where both humans and Draconians believe them to be a spy for the other side.
The Doctor is sentenced to life imprisonment at a lunar penal colony while Jo encounters an old enemy.
The Master rescues the Doctor from the lunar penal colony, aiming to take him and Jo to the Ogrons' planet, and the Doctor's attempt to escape leaves him stranded in space.
The Doctor, Jo and the Master are taken to Draconia, where the Doctor tries to convince the Draconians of the truth.
The Doctor, Williams and the Draconian Prince head to the Ogrons' planet to find evidence of the Master's actions but the Master tricks Jo into leading them into a trap.