General Rossiter comes to Space City to present Steve with the Astronaut of the Year award. XL5 and the ground staff put on a song and dance show to raise money for charity. Meanwhile Venus is put in danger aboard a new supersonic jet liner.
Gerry Anderson
Robert the Robot (voice) (uncredited)
David Graham
Lieutenant Ninety (voice)
Sylvia Anderson
Doctor Venus (voice)
Paul Maxwell
Colonel Steve Zodiac (voice)
John Bluthal
Commander Wilbur Zero (voice)