GDR, August 1989: Hanna and Andreas became a target of the secret police and had to give up their plans for their future studies and desired professions. Instead, they face arbitrariness, mistrust and reprisals. Their only chance for a self-determined life lies in fleeing across the Baltic Sea. Fifty kilometres of water separate them from freedom - and only a thin connecting rope around their wrists saves them from absolute loneliness.
The Kops try to make their big comeback in Schwerin, but everything goes wrong. Once the had been Stars in a Youtube-Series, but these "glory" days are long ago.
Emma is addicted to chewing gum and in the middle of puberty, but doesn't really want to admit it. She doesn't want to do anything with her sandpit friend Lasse other than swinging, playing with her father's railroad world and chewing gum - nothing should change. But Lasse suddenly has a girlfriend and, even worse, he's also interested in sex.
Full of anticipation, the young and ambitious Commissioner Carsten Lanner (Florian Lukas) is moving from Berlin Cloppenburg in Lower Saxony for a further education. However, he did not expect the outspoken chutzpah of the Berliners and, above all, the rude nature of his colleagues, who in no way received him with open arms. And so he slips more accidentally than wanted shortly after his arrival in Berlin in his first case.
In 1988, the East Berlin homicide squad again and again encounters crimes that - according to the opinion of party leadership and state security - do not exist in socialism.