A series of its time and nothing wrong with that. I am used to the filmed look of this series, and like seeing the old bits of London now changed or gone. In this story a detective policeman decides to fit up a career armed robber for a robbery he did not commit because it is his "turn" to go to prison ie the policeman knows he is a criminal and decides to put him inside, even for something he did not do. The policeman fabricates evidence, forces another criminal to give false evidence and manipulates the system so a strict judge will hear the case. The robber is defended by his solicitor, a shady character used to offering the police bribes, in a lovely performance by Ken Campbell. The robber is found guilty and goes to prison, where he rebels against the regime, and is savagely beaten by the guards. His appeal fails and his spirit is broken and the series ends. An eye-opening account of how police can manipulate the justice system and act corruptly, and of how the police, justice and prison systems can fail due to the weaknesses of individuals.