The movie's plot is based on the true story of a group of young computer hackers from Hannover, Germany. In the late 1980s the orphaned Karl Koch invests his heritage in a flat and a home computer. At first he dials up to bulletin boards to discuss conspiracy theories inspired by his favorite novel, R.A. Wilson's "Illuminatus", but soon he and his friend David start breaking into government and military computers. Pepe, one of Karl's rather criminal acquaintances senses that there is money in computer cracking - he travels to east Berlin and tries to contact the KGB.
Retirees Karin, Gerhard and Philippa are not in the mood for Nordic walking and seniors' courses at the university. When Philippa, who is living life to the full as Leonie's godmother, helps the two to unexpected grandparenthood, they suddenly have two "lively" god-grandchildren to look after, a huge bouncy castle standing in the garden and Lego bricks stuck to their feet.
Life is tough on car fanatic Fred. As soon as he has convinced the beautiful hairdresser Tina, he wins an Opel Manta in a raffle and is rid of the lady immediately. From now on, Tina prefers to turn to the photographer Phil. He has what Fred always wanted: a Golf GTI. To make matters worse, he now has to listen to the mocking remarks of his fellow men at every traffic light. But Fred doesn't give up. He finally finds support in the Manta Club. In a big race he finally wants to put his rival GTI-Phil in his place.
