While investigating a Calling, Michaela finds a mysterious stowaway. Ben clings tightly to his beliefs. Cal comes out of hiding to pursue a lead.

Michaela, Vance, Jared and Zeke's search for Ben at the compound leads to an explosive confrontation — and a divine miracle.

Everyone is forced to adjust as Cal guards a secret, Eagan pursues his own mission, and Michaela uncovers a tragic murder.

The passengers race to solve their Callings as Saanvi tests a theory on the patients. Eagan makes a surprising move. Michaela confronts hard truths.