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Episode 8: Chapter 8: Overview

43min - While BBA and the others converge on the clinic, Nina persuades Hap to show her his research, and Karim unlocks one of the house's final secrets.

Episode 7: Chapter 7: Nina Azarova

51min - Karim returns to the house with reinforcements, OA tries to access Nina's memories, and Hap offers to discharge Scott -- after one last experiment.

Episode 6: Chapter 6: Mirror Mirror

47min - As BBA and the kids head west, an alarming news report forces them to speed up their plans. Jesse wrestles with lingering trauma from the shooting.

Episode 5: Chapter 5: The Medium & the Engineer

42min - After a harrowing ordeal, OA and Karim find themselves locked inside a labyrinth of puzzles. Nagging doubts prompt Homer to snoop on Dr. Percy.

Episode 4: Chapter 4: SYZYGY

1h 3min - Karim visits Nina at the clinic for help finding the secret entrance to the house. Meanwhile, Hap meets a fellow traveler, and Homer goes on a date.

Episode 3: Chapter 3: Magic Mirror

55min - In Michigan, Steve begs the gang to try jumping to another dimension, and a presence in Buck's mirror inspires an unlikely pilgrimage.

Episode 2: Chapter 2: Treasure Island

1h 10min - At the clinic, OA discovers what happened to her friends back at Hap's. Karim turns his attention to a doctor who worked for Pierre Ruskin.

Episode 1: Chapter 1: Angel of Death

1h 8min - While private eye Karim Washington scours San Francisco for a missing teen who was involved in a cryptic game, OA wakes up in unfamiliar surroundings.