The Thomas family arrive on Saint X for what seems like an idyllic family trip; in present day Brooklyn, Emily has a surprise encounter with someone from her past; the genesis of Gogo and Edwin's friendship.
The night of Alison's disappearance; Alison is drawn to both Edwin and Tyler; Emily starts to dig deeper into her past; on an off-resort excursion, a tourist family stumbles across something shocking.
After the discovery of Alison's body, Gogo and Edwin become the presumed suspects; Emily continues to follow Clive, lying to Josh and Sunita.
More about Clive's history after he left the island; Clive reluctantly begins to open up to Emily as she continues to pursue him, much more aggressively, with Sunita's help; Alison and Edwin get closer.
Someone from his past reaches out to Clive; Tyler tries to push things with Alison; Emily and Josh's relationship is challenged as she continues to search for answers; Emily and Sunita clash over her growing obsession.
Emily can't stop thinking about the letter; the Thomas family visits Emily and Josh; more about Claire's past.
Alycia Debnam-Carey
Emily
Josh Bonzie
Clive "Gogo" Richardson
West Duchovny
Alison
Jayden Elijah
Edwin
Bre Francis
Sara Lycott