When the launch of a mission to Mars goes awry due to sabotage, International Rescue is requested to assist in the mission's second attempt.
Sylvia Anderson
Lady Penelope Creighton-Ward (voice)
Ray Barrett
John Tracy / The Hood (voice)
Alexander Davion
Space Captain Greg Martin (voice)
Peter Dyneley
Jeff Tracy (voice)
Christine Finn
Tin-Tin Kyrano (voice)
David Graham
Gordon Tracy / Brains / Aloysius Parker (voice)
Paul Maxwell
Captain Paul Travers (voice)
Neil McCallum
Dr. Ray Pierce (voice)
