A small town shortly before the end of the GDR: 15-year-old Ulla lives with her mother in a dilapidated old building where not even the electricity works properly. Economy of scarcity and national bankruptcy are visible everywhere. Only higher party comrades live in the lap of luxury. When Ulla meets Winfried after a summer bathing trip, the two fall in love. Winfried is the son of an influential general director and owns things from West Germany that others only dream of: a computer, a games console, a walkman. On an excursion with her biology class, the high school student discovers that a dacha is being built in the middle of the nature reserve and the creek has been dammed. Winfried's father turns out to be the culprit, but the mayor is on his side. Ulla rebels against this environmental destruction connected to political corruption and organizes a protest. Her activism not only endangers her own future, but also her first great love.
Unfortunately the movie Biology! is not yet available on Disney Plus.
| Writing | Wolf Spillner | Novel |
| Writing | Wolfgang Müller | Writer |
| Sound | Christoph Theusner | Original Music Composer |
| Costume & Make-Up | Klaus Friedrich | Makeup Artist |
| Production | Rüdiger Lieberenz | Unit Manager |
| Sound | Günter Witt | Sound |
| Costume & Make-Up | Ursula Funk | Makeup Artist |
| Costume & Make-Up | Andrea Teichmann | Makeup Artist |
| Production | Alexander Gehrke | Production Manager |
| Sound | Günter Springer | Sound |
| Production | Ralf Schulze | Unit Manager |
| Sound | Helga Kadenbach | Sound Re-Recording Mixer |
| Production | Christoph Ebeling | Unit Manager |
| Art | Hans Poppe | Production Design |
| Camera | Michael Göthe | Director of Photography |
| Costume & Make-Up | Marion Mentel | Costume Design |
| Directing | Jörg Foth | Director |
| Editing | Haike Brauer | Editor |
| Writing | Gabriele Kotte | Writer |
