by Allan Prior
with Frank Windsor as Det-Supt Watt, Norman Bowler as Det-Insp Hawkins, Terence Rigby as PC Snow, Julie Hallam as Det-Con Forest
with Walter Gotell as Chief-Con Cullen
Harry Hawkins doesn't think there is any difference between a practice situation and the real thing. But how does he feel when he has to put his theory to the test?