Ex-insurance investigator Ian Souter sets up his own security agency — the SIS (Specialists in Security) — alongside ex-cop Robert Shoesmith and secretary Heather Keys - and fight crime.
- Created by
- Michael Chapman
Ex-insurance investigator Ian Souter sets up his own security agency — the SIS (Specialists in Security) — alongside ex-cop Robert Shoesmith and secretary Heather Keys - and fight crime.
1 season · 14 episodes

Landscape with Bandits
Mar 28, 196452 min
'The criminals and us – we're all in the same business. The difference being, our clients pay us to keep one jump ahead of the criminal mind' – Ian Souter. SIS opens its doors for the first time.
The Bottle Shop
Apr 4, 196452 min
Invited to discover why a research laboratory is losing money, even though they have a monopoly in the medical research trade, the Protectors discover that someone is making overtures to the competition and is prepared to sing — for a price
Happy Is the Loser
Apr 11, 196452 min
Accepting what appears to be a routine assignment, SIS suddenly find themselves involved in violence when they're framed by a gang of ruthless racketeers.
No Forwarding Address
Apr 18, 196452 min
Following up on a lead, Souter and Shoesmith find themselves in a deserted warehouse which should contain the answer to a riddle they're determined to solve. They find nothing of interest — beyond a dead body.
The Loop Men
Apr 25, 196452 min
An injured railwayman, a loop-line rendezvous at midnight: clues which the Protectors must crack to discover the headquarters of a gang of hijackers — and deliver a young man from a life of crime.
The Stamp Collection
May 2, 196452 min
Guarding a world-famous stamp collection locked in a bombproof vault hardly seems a dangerous assignment. But the Protectors will need all their guile when they come up against a brilliant criminal.