Commissioner Paweł Sikora and his partner Robert Gazda are trying to recruit an informant among Pruszków gang members.

Mira learns about Blacha's affair with Małgośka. She's fed up with her husband's infidelities and dirty dealings. She gives her husband an ultimatum.

Gangsters are having fun at the races. Suddenly, Mnich's car explodes. Pietruszka returns from a sanatorium in Rabka.

Blacha survives the accident, but his fellow gang members suspect him of betrayal. He has to convince them that Sikora is his informant.

Szybki suspects Mnich of murdering Wołomin gangsters. Mnich denies everything. Szybki suspects that Bird will take revenge.

Sikora and Gazda are investigating a convoy robbery. Their suspect, Małpa, turns out to be a false lead.