This one-off TV play became the pilot episode of the British police series 'The Sweeney', and introduced the tough detective Jack Regan, whose hard, unconventional methods of detection bring him more trouble from his bosses than from criminals.
Armchair Cinema
A flying squad officer is brutally beaten by gangsters in a London pub, but survives. However, he later dies from his injuries. This prompts the arrival of a vengeful and unconventional detective, Regan, who is determined to take down the gangsters responsible.