The series "Kleo" tells the story of a young female spy from Germany. The plot unfolds in the GDR in 1987, during the fall of the Berlin Wall. Agent Kleo eliminates a prominent businessman on the orders of her mysterious boss, codenamed Stasi. However, at the same time, the police storm her headquarters and Stasi is sent behind bars. Kleo also ends up in prison, where she has enough time to unravel an international intrigue and devise a plan for revenge.