A mysterious album of never before seen Nazi-era photographs arrives at the desk of United States Holocaust Memorial Museum archivist Rebecca Erbelding. As Rebecca and her team of historians begin to unravel the shocking story behind the images, the album soon makes headlines around the world. In Germany, a businessman sees the album online, recognizes his own grandfather in the photos, and begins a journey of discovery that will lead him to a reckoning of his family’s past and his country’s history.