61. The Curse of Peladon

Welcome back my darling Ice Warriors! After a 3 year absence, the Ice Warriors from Mars return but this time as allies and not enemies. This is the Doctor's first trip to Peladon and another romance for Jo Grant. The Time Lords once again send the Doctor and Jo off planet to interfere on their behalf again. We meet for the first time Alpha Centuri and we hear the Doctor sing a lullaby to Aggedor. This is a fun little romp with some royal intrigue, misdirection and good old fashion corridor running. Of course we are to assume the Ice Warriors are the bad guys, again, but as it turns out they're good guys this time. And the Ice Marshall gets a cape this time! We also find out that the Ice Warriors are green.

http://en.wikipedia.org/wiki/The_Curse_of_Peladon