After an earthquake leaves Danny trapped and alone, his claustrophobic nightmare only gets worse when something truly horrifying emerges from the fissures in the ground, forcing him to engage in a brutal fight for his life and his sanity.

After her husband dies, Sarah moves her daughters Chrissy and Kilee to a new city. Kilee hates the move, feeling that they're running away from her dad's memory. When she's bullied at school and is endlessly fighting with her sister, it feels like the world is against her, until she discovers a doll, riddled with pins, in her backyard shed. She soon comes to believe that the doll holds supernatural powers but when it starts acting on its own, Kilee becomes concerned about what she might have unleashed on the people in her life.

Jessie's father is murdered and Lena, her sister, is collateral damage (it is thought to be an accidental gas leak). Jessie and her mother Anna move near Kylie and her mother Tanya. Anna wants Kylie as a replacement.