• title card: DRAGONSFIELD superimposed on the second technician
  • publicity still: Steed talks to Redington
  • publicity still: Boris and his goon threaten Saunders
  • publicity still: Steed threatens to crush Boris' hand in the machinery
  • publicity still: Steed is stripped to the waist and strapped to the equipment for one last test
  • publicity still: Susan, in her radioactivity suit, attacks Lisa

Series 1 - Episode 26

by Terence Feely

Production completed: 27 September 1961. First transmission: 30 December 1961

With work nearly completed on a new material to shield astronauts from radiation, saboteurs prepare for one final assault. Complicated inter-personal relationships within the team suggest a traitor and Saunders, from Security, tracks the gang. Meanwhile, Steed tracks Saunders and rescues him from being killed. With the saboteurs in custody, the traitor is unmasked as Susan Summers, Alford's assistant, and Steed neutralises this final threat.


Teleplay by Terence Feely regularThe SaintThe PrisonerSpace 1999UFO
"The Avengers" Theme composed and played by Johnny Dankworth regular
Designed by Voytek Callan
Producer Leonard White regularCallanPolice Surgeon
Directed by Peter Hammond regular


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