This thrilling drama tells the heroic true story of 19-year-old Irena Gut (portrayed by Sophie Nélisse, of the hit series Yellowjackets), a Polish nursing student who is conscripted to work as a housekeeper for a Nazi officer. Shocked by the Nazi’s brutality against her Jewish neighbors, Irena decides to shelter 12 Jewish workers in the safest place she can find: the cellar of the Nazi officer’s villa. Irena uses her wit and courage to hide her friends for the next two years, persevering through countless Nazi parties, a blackmail scheme, and an unexpected pregnancy, until the chaotic end of the war creates new threats to their lives.