A woman missing for seven years turns up at a hospital with strange scars on her back but can't or won't reveal where she's been.
The OA retraces the dramatic twists and turns in her life after a childhood accident, leading up to a fateful encounter far from home many years later.
A journalist approaches the family with an offer. At Hap's, a bond is forged with Homer and the others as they hatch a desperate plan.
An agonizing dilemma gives OA a new perspective on the group's plight. Homer resolves to find out what Hap's experiments are really about.
While Hap zeroes in on a new test subject in Cuba, Homer and OA work to perfect their escape plan. Scott reaches his breaking point.
As the group continues its search for the final movement, a startling turn of events gives Hap's work a new urgency.
An ominous new dream and a tense outing with Nancy and Abel take a toll on OA. Steve finds his life in turmoil once again.