The Curse of Peladon The Doctor and Jo make a test flight in the TARDIS and arrive on the planet Peladon. Seeking shelter, they enter the citadel of the soon-to-be-crowned King Peladon, where the Doctor is mistaken for a human dignitary summoned to act as Chairman of a committee assessing an application by the planet to join the Galactic Federation. The Monster of Peladon The TARDIS returns to Peladon some fifty years after the Doctor's last visit. The planet is now ruled by Queen Thalira - daughter of the late King Peladon - with advice from Chancellor Ortron. The Doctor and Sarah are arrested by Ortron for trespassing on sacred ground but their names are cleared by Alpha Centauri, now Galactic Federation ambassador to Peladon