The film adaptation of Robert C. O’Brien’s novel Z for Zachariah debuted at Sundance earlier this year, and now we get a peek at the post-apocalyptic drama. Margot Robbie and Chiwetel Ejiofor play survivors of a nuclear disaster living a quiet post-apocalyptic life, at least until Chris Pine shows up to compete for Robbie’s affections.

The early reviews of director Craig Zobel’s Z for Zachariah have been largely positive, describing the film as a low-key movie about the fragile bonds of trust and how they can be tangled by jealousy and contempt. We’ll get the full picture when the movie hits theaters August 21st, 2015.