Stuart Fell

Trapped by the Wirrn, the Doctor and his friends are forced into one last gamble as they seek to protect the humans still in cryogenic suspension.

The Doctor and Jo find themselves involved in interplanetary skulduggery on Peladon, which has applied to join the Galactic Federation.

The Doctor is sentenced to a fight to the death in the pit with the King's champion.

Hepesh, with help and support from the delegate from Arcturus, is revealed to be behind the attacks.

The Doctor knows the Ice Warriors of old and believes them guilty of sabotage.

The Doctor uncovers the Ice Warriors' plot to subjugate Peladon by frightening miners into providing needed trisilicate. With Jon Pertwee.