Bird Box Barcelona follows a group of survivors as they flee an unexpected, devastating onslaught by an unknown entity, which causes awful hallucinations and suicides. We fly to Barcelona, Spain, to walk with Sebastián and his daughter Anna through the city’s perilous and depressing streets. The father-daughter combo joins the other survivors in their search for a safe haven as bizarre monsters and humans hunt them down. When the four meet, the experiences and revelations they share will undoubtedly influence their lives.