Overview
Ex-insurance investigator Ian Souter sets up his own security agency - the SIS (Specialists in Security) - along with ex-cop Robert Shoesmith & secretary Heather Keys - and fight crime.
CreatorsMichael Chapman
ProducersMichael Chapman
WritersBill Strutton, Brian Clemens, Larry Forrester, Malcolm Hulke, John Lucarotti, Ian Kennedy Martin, Fiona McConnell, Martin Woodhouse
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Details
First air date1964-03-28
Last air date1964-06-27