An intruder is shot dead at a Territorial Army base. Clark is forced to accept help from Angela Berridge, an official from the Home Office, and finds that the activities of MI5 and Special Branch undermine his investigation.
Quest roles:
Michael Byrne, Stephen Marcus, Michael Keating, Oliver Ford Davies, Michael Pennington, Duncan Bell, Gillian McCutcheon, Michael Elwyn, David Savile, John Strickland, Chris Gascoyne