The powerful, eight-episode limited series tells the remarkable story of 20-something secretary Miep Gies (Bel Powley), who didn't hesitate when her boss Otto Frank (Liev Schreiber) asked her to hide him and his family from the Nazis during World War II. For the next two years, Miep, her husband Jan (Joe Cole) and several other everyday heroes watched over the eight souls hiding in the secret annex. It was Miep who found Anne's diary and preserved it so that she and Otto could later share it with the world. The series title comes from something Gies said late in her life: "I don't like being called a hero because no one should ever think you have to be special to help others. Even an ordinary secretary or a housewife or a teenager can turn on a small light in a dark room."
Source: the futon critic