When Owen and Claire arrive, Maisie recognizes Owen from the video and Claire from a meeting she had with Lockwood. Owen and Claire form a bond with Maisie and comfort her following her grandfather's death, which allows her to trust them. As her guardian, Mills confronts Owen and Claire, and demands that Maisie stay with him when he suspects that they want to take care of her. He reveals to the three of them that Maisie is actually a clone. She is then pursued throughout Lockwood's mansion by Wu's latest hybrid prototype, the "Indoraptor", after it escapes. Owen and Claire work to protect Maisie from the "Indoraptor", and manage to kill it with assistance from Blue. When the unsold captive dinosaurs are threatened by a hydrogen cyanide leak, Maisie releases them into the wild. Being a clone, she sympathizes with the cloned dinosaurs and believes they should be free. By the end of the film, she accompanies Owen and Claire in a station wagon.