After the border had officially been closed, the students were separated and often didn't know if their friends on the other side were OK. Luckily, a few letters got through.

The restrictions placed on residents of both West and East Berlin intensifies to the point where the classmates aren't even actually allowed to have contact.

Rüdiger and Bärbel attempt to escape into West Berlin, but it doesn't go according to plan.

While their classmates in the West graduate, Rüdiger and Christian come to terms with their life in the East Berlin.

Rüdiger finds himself in prison, subject to interrogation, and separated from his sister.

While Rüdiger and Bärbel face the consequences of their actions, the other former classmates move on in more positive ways.

Christian considers a dangerous escape plan.

Christian escapes by swimming across the border, but leaves Heidi behind. Rüdiger is suddenly presented with a new option.

In the conclusion of the film, find out whether Rüdiger leaves West Germany, and what each person in the group is doing today.

People living in the Alps are also anxiously awaiting spring. The Imster Schemenlauf is a traditional parade to drive out the winter.

As spring struggles to break through, blooming flowers may be preserved in ice. Meanwhile, the male grouse tries to attract potential mates.

The segment features more footage of the alpine black grouse, as well as a festival held by the local religious community in the valley of Kals.

This episode comes with spectacular views on Austrian lakes and introduces the daffodil festival in Grundlsee.

In this segment, we see how the churned butter is put into a traditional wooden mold, take a look at some more farm animals, and catch a glimpse of the "Daberklamm," an alpine gorge.

Up in the mountains, a vulture and an eagle fight for their territory while conservationists watch closely. The series ends with a view of the Venediger Group, a famous high mountain range.