The training and work of the new police forces in post-war Germany, focusing on Hamburg. Previously, Nazi Germany was a police state ruled by fear, and after the war there was an urgent need to re-establish law and order. Public Safety Officers went in with the Army of Occupation to train new, younger and non-Nazi German police.

At the Polizeischule (Police School) in Hamburg, recruits are taught that the police officer is the servant of the public, not its master. Their initial tasks are to investigate former Nazis and look after refugees. A major current problem concerning delinquent children is dealt with by appointing uniformed policewomen with specific training in this area. These officers also look after prostitutes, helping them return to civilised society.

The biggest problem facing the new officers is the black market, which is hampering Germany's economic recovery. Black marketers are arrested, and their goods are returned to the open market.