The planet Peladon has applied to join the Galactic Federation, and The Doctor is mistaken for the chairman of the committee sent to assess its application, while Jo is taken for an Earth princess, with the mythical curse of Aggedor apparently striking chancellor Torbis dead, The Doctor must discover who is desperate to stop Peladon joining, but soon he is sentenced to death and his only Allies seem to be Jo and the Ice Warrior Delegates.
Jon Pertwee
The Doctor
Katy Manning
Jo Grant
David Troughton
Peladon
Geoffrey Toone
Hepesh
Henry Gilbert
Torbis
Alan Bennion
Izlyr
Sonny Caldinez
Ssorg
Stuart Fell
Alpha Centauri
