4 Blocks is a German television series that revolves around the story of Toni Hamady, a Lebanese-origin man based in Berlin. He is trying to leave behind a life of crime and lead an honest and peaceful life with his family. However, his loyalty to his family and the pressure from the criminal underworld make it impossible for him to escape his past. The series delves into the themes of family, loyalty, and the tensions between different cultural backgrounds in modern-day Germany.