Series premiere. Programmers at a visionary park worry over aberrant behavior by android “hosts.”

A pair of new guests arrive at Westworld; engineers debate whether a recent host anomaly is contagious.

A rogue host goes missing in the hills; Teddy receives a new backstory, setting him off in pursuit of a new villain.

The Man in Black finds a clue towards the maze; Maeve is troubled by a recurring vision.

Dolores and William are recruited for a dangerous mission in Pariah, a city of sin and sex. The Man in Black makes an unlikely ally.

Maeve charms Lutz; Elsie uncovers possible sabotage; The Man in Black and Teddy run afoul of a garrison.