Michaela, Ben, Zeke and Saanvi all have the same calling. After another panic attack, Saanvi is finally ready to see a therapist, but it may not be what's best for her. An ominous new link appears between Griffin and the 828 passengers.

As the Stone family reels in the aftermath of a devastating shooting, they’re hit with their most foreboding Calling yet, sending Ben on a mission to locate two Flight 828 passengers who have mysteriously gone missing. Grace grapples with her new pregnancy, the Major attempts to tighten her grip on the unwitting Saanvi, all while the clock on the lives of the 828ers continues to tick towards zero.

Ben forms an alliance with a student from Flight 828, whose callings either uncovered a violent crime or helped him commit one. As Saanvi strives to further her research into the death date, Grace makes a startling discovery about her pregnancy.

As Zeke's condition worsens and the clock ticks towards his Death Date, he must confront his past while Saanvi tries to secure him a future. A pair of connected callings lead Ben and TJ to a surprising loved one, and Michaela faces a moral dilemma when her own calling instructs her to let a criminal go free.

Ben is drawn to help absolve a passenger of his guilt, while Saanvi enlists help in protecting herself from the Major. Jared and Drea attempt to extract a confession from a trio of ruthless meth dealers who would do anything to exact revenge on Michaela.

As the passengers adjust to a frustrating new reality, Ben and Michaela seize an opportunity to solve a Calling, with the Registry in hot pursuit.