In a world filled with espionage and betrayal, Dominika Egorova, a young and talented dancer from the Bolshoi Ballet, sees her life turned upside down when an injury forces her to abandon her career. Unsure of how to rebuild her future, her uncle recruits her for a secret Russian government program that trains intelligence agents. There, she learns to become a "sparrow," an expert seductress in manipulation and espionage.