Sat, Jan 29, 1972
The Doctor and Jo arrive on the medieval planet Peladon, where the Doctor is mistaken for the Earth Delegate of the Galactic Federation and Jo is mistaken for a princess. Where the Doctor uncovers a conspiracy, as he exposes the evil scheme of the high-priest Hepesh who bids to prevent King Peladon from joining the galactic Federation.
Sat, Apr 8, 1972
The Doctor and Jo arrive on the planet Solos, on an assignment by the Time Lords. The Doctor and Jo learn that the native Solonians are mutating into ant-like mutant creatures and they uncover a conspiracy, where the evil Marshal of the Earth Empire plots to rule Solos for himself and plans to convert the Solos atmosphere, since the planet's atmosphere is poisonous, so the planet can be colonized by the humans He plans to wipe out all the mutated Solonians, who are evolving into an advanced super race.