'Flight to Danger' by Alan Fennell

In order to win his astronaut's wings Lieutenant 90 must land at Space City in Fireball XL5, then complete a solo orbit of the moon in Fireball XL1. He manages to complete the landing – just – but when he sets off for the moon, he is unaware that the ship’s miniature atomic reactor has broken loose and may explode any minute…

Paul Maxwell (Colonel Steve Zodiac / Technician), Sylvia Anderson (Doctor Venus), David Graham (Professor Matt Matic / Lieutenant 90), John Bluthal (Commander Zero), Gerry Anderson (Robert the Robot)

Directed by David Elliott
Produced by Gerry Anderson
Associate Producer Reg Hill

TX (UK - ITV):
22nd July 1963

Notes:
*Featuring Colonel Steve Zodiac, Venus, Professor Matt Matic, Commander Zero, Lieutenant 90 and Robert the Robot