This one-off TV play (Armchair Cinema: Season 1, Episode 2) became the pilot episode of the British police series 'The Sweeney'. Sgt Alan Cowley of the Flying Squad is killed whilst on the trail of rival London gangs. It is discovered that he had not called in for several days, and had filed no paperwork detailing his progress. His guvnor, Jack Regan, is determined to find the killers despite being forbidden to interfere in the case, which has been assigned to the rival Serious Flying Squad.