The film tells of the beginnings of the Serengeti National Park in Tanzania. At the end of the 1950s, the Tanzanian National Park Administration wanted to fence in the protected area around the Ngorongoro Crater. Bernhard and Michael Grzimek were invited by the national park administration in 1957 to get a precise picture of the animal migrations and to provide the national park administration with the values ​​they needed for their project. Using a new counting method with two airplanes, the Grzimeks found out that the migration of the herds was different than assumed.

The von Trapp family are struggling to survive in America, where their performances of European church music are not popular with the audiences. Only when they start performing more upbeat Austrian folk songs and even some American numbers do they become a success and finally find security and a new home.

The 21-year-old student Oliver Mansfeld attends a boarding school in Frankfurt. There he meets the married banker's wife Verena. A passionate affair develops between them, which does not remain undiscovered by Verena's husband for long.

Michèle, an employee at the airport, is in love with American pilot Eddie Miller who regularly flies the route from New York to Paris, but problems arise when he is transferred to the Tokyo route. Meanwhile Michèle's uncle Albert who works in the freight department sets out to tackle a drug trafficking outfit.

Three dramatic stories from the everyday school life of adolescent pupils.

Various interwoven stories about women of different ages and life situations, each dealing with encounters, relationships, and expectations of love and life paths. The focus is on female characters who, each in their own way, are at a crossroads in their lives: whether through a surprising acquaintance, a disturbing announcement, a new romance, or an encounter with a mysterious gentleman who challenges old certainties.

U.S. spies catch a Moscow-born U.S. citizen helping spies, and they force him to counterspy.