The TV series "Dinosaur" tells the story of Semen Babushkin, a former criminal who, after 35 years in prison, learns that he has a son. By twist of fate, the only "blood relative" of the gangster turns out to be a police investigator. In addition, Slava is raising a beautiful daughter - Semen's own granddaughter. However, the prisoner is informed that his family is now in great danger. Babushkin begins to use all his old criminal connections to gain his freedom and save his son.