A woman missing for seven years turns up at a hospital with strange scars on her back but can't -- o...

The OA retraces the dramatic twists and turns in her life after a childhood accident, leading up to...

A journalist approaches the family with an offer. At Hap's, a bond is forged with Homer and the othe...

An agonizing dilemma gives OA a new perspective on the group's plight. Homer resolves to find out wh...

While Hap zeroes in on a new test subject in Cuba, Homer and OA work to perfect their escape plan. S...

As the group continues its search for the final movement, a startling turn of events gives Hap's wor...

An ominous new dream and a tense outing with Nancy and Abel take a toll on OA. Steve finds his life...

After OA recounts a dramatic final night at Hap's, the others begin to see her story in a new light....

While private eye Karim Washington scours San Francisco for a missing teen who was involved in a cry...

At the clinic, OA discovers what happened to her friends back at Hap's. Karim turns his attention to...

In Michigan, Steve begs the gang to try jumping to another dimension, and a presence in Buck's mirro...

Karim visits Nina at the clinic for help finding the secret entrance to the house. Meanwhile, Hap me...

After a harrowing ordeal, OA and Karim find themselves locked inside a labyrinth of puzzles. Nagging...

As BBA and the kids head west, an alarming news report forces them to speed up their plans. Jesse wr...

Karim returns to the house with reinforcements, OA tries to access Nina's memories, and Hap offers t...

While BBA and the others converge on the clinic, Nina persuades Hap to show her his research, and Ka...