The book tells a story of a Ukrainian woman Katya who saved two Jewish boys during World War 2. The boys grew up and left Ukraine while staying in touch with Katya and her family. 80 years later (and after Katya's death) when the current Russian invasion of Ukraine began in February of 2022, the children of those two boys flew back to Ukraine. They rescued Katya's children, grandchildren and great-grandchildren, by moving the whole extended family...