4x8: Westworld

: The host version of Caleb —whose body is rapidly rejecting his mind—successfully helps his daughter, Frankie , escape the chaos of the city. He shares a tearful final goodbye with her before his host body ultimately fails. Westworld Season 4 Ending Explained

: A rebuilt Charlotte Hale receives a final message from Bernard , urging her to save what remains. She confronts and kills the host William at the Hoover Dam, destroying his pearl. Recognizing her own role in the world's collapse, she destroys her own pearl after completing one final task. Westworld 4x8

: Throughout the season, a version of Dolores known as Christina lived in a simulated New York, unknowingly writing the narratives of the controlled humans. Realizing she is a "machine without a body," she is uploaded into the Sublime by Hale to run "one final test" for sentient life. : The host version of Caleb —whose body