In the last film of the original 91 film series two letters - one written in spite and another in love - end up in the wrong hands, while 91 and 87 as usual try to avoid ending up in military arrest.
Helge, a factory worker, awakens to life after he almost loses his arm in a machine. His happiness at not losing his arm has him see the world in a new way. He takes a vacation, where he sees Klara, a beautiful girl. He decides to spend the rest of the vacation searching for her.
After the first world war Andreas returns to Berlin to find it in chaos after the fall of the empire. The main battle is between the Spartacists and the Freikorps and Andreas needs to find a place for himself in the conflict for the future of Germany.
Director Torbjörn Axelman and singer Lee Hazlewood philosophize about their lives. In their vicinity are the psychics Fedra, mysteriously talking about tigers, the forces of evil that constantly threaten.