Anne Frank's celebrated memoir of her time in hiding during the Holocaust, The Diary of a Young Girl, has been adapted to stage and film several times but never before has the story been told from the perspective of the woman who hid her family, Miep Gies.

In National Geographic's eight-part limited series, A Small Light, Bel Powley portrays Miep, who readily agrees to hide the Frank, van Pels and Pfeffer families in a secret annex from 1942 to 1944, when they were finally discovered and sent to German concentration camps.

Nat Geo finds the series, produced by ABC Signature and Keshet Studios, so powerful that it is working with parent company Disney to roll it out across several platforms to try to attract the widest audience possible.

A Small Light will first debut on Monday, May 1, at 9/8c with a simulcast of the first two episodes across National Geographic, Nat Geo Wild and Lifetime. On Saturday, May 6 at 8/7c, Freeform will encore those episodes. For the full series run, two episodes will debut every Monday at 9/8c on National Geographic, stream the next day on Disney+ and Hulu, and will be available on the Nat Geo TV and ABC apps.

“When we first heard the remarkable story of Miep Gies we were gripped and deeply moved. We were also convinced that this limited series about an everyday superhero – one that most people around the world have never heard of – needed an unprecedented rollout,” said Carolyn Bernstein, EVP, scripted and documentary films, National Geographic, in a statement. “We are determined to bring A Small Light to the largest global audience possible and hope this ambitious rollout across multiple networks and streaming platforms allows audiences to fall in love with and be inspired by Miep just as we have.”

Besides Powley, the series stars Liev Schreiber as Anne's father Otto, who originally asks his secretary, Miep, to hide his family. Additional cast includes Jan Cole, who plays Miep's daring and devoted husband, Jan; Amira Casar, who plays Edith Frank, mother to Margot and Anne; Billie Boullet, who portrays Anne Frank; Ashley Brooke, who plays Anne's older sister, Margot Frank; Andy Nyman as Hermann van Pels, Caroline Catz as Auguste van Pels, Rudi Goodman as Peter van Pels and Noah Taylor as Dr. Fritz Pfeffer.

A Small Light is executive produced and written by Joan Rater and Tony Phelan who also serve as showrunners, along with executive producer Susanna Fogel, who directs multiple episodes, including the pilot. William Harper also executive produces. For Keshet Studios, executive producers are Peter Traugott and Lisa Roos, Alon Shtruzman for Keshet International, and Avi Nir for Keshet Media Group.