As another day of fantasy plays out in Westworld — a vast, remote park where guests pay top dollar to share wild-west adventures with android "hosts" — top programmer Bernard Lowe alerts park founder Dr. Robert Ford about incidents of aberrant behavior cropping up in some recently re-coded hosts. Meanwhile, in the Westworld town of Sweetwater, a rancher’s daughter named Dolores encounters a gunslinger named Teddy in the street — but their predictable narrative is upended by the appearance of a ruthless Man in Black and, later, by a supporting host’s unscripted encounter with an artifact of the outside world.

Ford orders a reluctant Bernard to conduct business as usual. Maeve looks to change the script for her storyline. Dolores finds it increasingly difficult to separate dreams from reality. Teddy is jarred by dark memories, while the Man in Black recalls some of the travails that brought him to this critical juncture.

Maeve approaches Sweetwater's longtime outlaw Hector Escaton with a bold proposition. William tries to convince Logan to help liberate Dolores. Teddy and the Man in Black get closer to what they're looking for. Stubbs's suspicions are aroused. Ford cautions Bernard against seeking answers to questions best left unasked.

Ford unveils his vision for a bold new narrative. Enlightened by Bernard and the Man in Black, Dolores comes to terms with who she is. Maeve sets her liberation plan in motion as Westworld faces a major upheaval.