Hunted by mysterious forces, a young woman (Gugu Mbatha-Raw) with supernatural abilities must go on the run when her powers are discovered. With nowhere else to go, she flees back to her family and the farmhouse she abandoned long ago. There, while being pursued by the local Sheriff (David Strathairn), she begins to mend the broken relationships with her mother (Lorraine Toussaint) and daughter (Saniyya Sidney) and learns that the power she needed was inside her all along.