When Saanvi goes missing, Ben suspects a fanatical group who have become obsessed with the passengers from Flight 828. Michaela must face the consequences of her reunion with Jared. Zeke returns to New York and has an ominous calling.

Ben and Michaela must confront a dire threat to the passengers' safety when Griffin schemes to take the callings public. Meanwhile, tensions between Jared and Zeke reach a boiling point, and Ben, Grace, and Olive make a devastating discovery.