The film follows the journey of Kitty, the imaginary friend to whom Anne Frank dedicated her diary. A fiery teenager, Kitty wakes up in the near future in Anne Frank's house in Amsterdam and embarks on a journey to find Anne, who she believes is still alive, in today's Europe. While the young girl is shocked by the modern world, she also comes across Anne's legacy.
A botched store robbery places Wonder Woman in a global battle against a powerful and mysterious ancient force that puts her powers in jeopardy.