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.

Another non-passenger appears to have come back from the dead, and Ben, Michaela and Saanvi want to know why now and why him; this mystery-man is also having callings; Saanvi experiences PTSD.

Ben and Michaela try to figure out what Zeke's return means in the bigger picture; Cal has another ominous calling and is nervous to connect with Zeke; Saanvi gets a frantic visit from someone looking to her for hope and salvation.

Michaela uses her skills as a detective to find out more about Zeke, a hiker who disappeared for two years and may be one of them; Ben's family is impacted as public disdain for the passengers of Flight 828 rises.

Ben and Grace rush upstate to find a kidnapped Cal, using his drawings as clues to his whereabouts; Michaela arrests and interrogates a traitorous Autumn, who may know more than she is letting on about Cal's disappearance.

Capt. Daly is desperate to prove that he is not at fault for the disappearance of Flight 828, and he needs Ben's help to clear his name; Michaela unknowingly lets a traitor into her home, endangering her family.

Ben struggles to trust a journalist who wants him to participate in a Flight 828 podcast; Michaela's callings rise to a whole new level when they are accompanied by hallucinations; things get complicated when Olive invites Danny over for dinner.

When a missing Flight 828 passenger shows up at his doorstep begging for help, Ben's quest to uncover the truth reaches a fever pitch; with Vance's help, Ben, Michaela and Saanvi race against time to find the Singularity Project's headquarters.

Ben finds himself working with an unexpected partner to search for the missing Flight 828 passengers; Michaela fears for the lives of her loved ones after she has a mysterious calling; Cal returns to school.

Michaela tries to make sense of her newest calling -- the sound of a beating heart; Ben goes to risky lengths to investigate the whereabouts of 11 missing Flight 828 passengers.

When Cal has a calling that jeopardizes his health, Ben and Michaela set out to cure him by following the calling and looking for a missing passenger from Flight 828; during their quest, they discover much more than they bargained for.

Flashbacks reveal how Grace, Olive and Jared coped with the loss of their loved ones after the disappearance of Flight 828; Ben tries to escape the voice in his mind by going on an adventure with Cal; Michaela struggles with her feelings for Jared.

Michaela and Saanvi have a similar vision, but it takes them some trial, error and teamwork to heed the call; Jared takes the fall for Michaela's misstep at work; Ben comes face-to-face with the man who replaced him.

Michaela and Ben investigate the murder of a fellow Flight 828 passenger; Saanvi discovers an unusual marker in Cal's blood that wasn't there before; Ben worries for the safety of his family; Michaela is urged to own her truth.

Michaela is conflicted when she faces her best friend, who is now married to Jared; mysterious music in Ben's mind moves him to help a fellow Flight 828 passenger connect with his imprisoned son; Olive urges Grace to tell Ben her secret.

When Flight 828 lands in New York, Michaela and Ben Stone and the other passengers learn that years have passed, but they haven't aged a day; they reunite with loved ones, piece together their old lives and deal with mysterious voices in their heads.

Michaela and Ben put everything on the line to attempt a daring rescue; as the final hours of Zeke's life approach, Saanvi and Vance make a last-ditch effort to appeal to the Major, who may be the only person who can save him from his death date.

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

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; Michaela faces a moral dilemma.

When Grace's pregnancy complicates the pursuit of a calling, Ben finds himself working alongside an uneasy new ally; Michaela tries to make amends with Jared; the Xers set their sights on Zeke.

As a storm rages outside the Stone home, Olive frantically searches for meaning in a centuries-old text; Michaela faces unexpected scrutiny at work; Zeke comes to Saanvi's aid when her lab research takes a dangerous turn.

When a group with nefarious intentions attempts to change the world as we know it by altering the past, Lucy, a historian, Wyatt, a soldier, and Rufus, a scientist, unite to form an unlikely partnership, traveling through time to save history. Their riveting adventures take them to some of the most thrilling, volatile and critical events on record, including a venture to the Old West, a sojourn to the Alamo, a visit to the famous Chicago World's Fair and a crusade into Nazi Germany. Along the way, they cross paths with famous historical icons, such as Josephine Baker, Harry Houdini, Ernest Hemingway and infamous rivals Eliot Ness and Al Capone. But every step the team takes to protect history puts everything we know at risk -- because changing one thing changes everything.

Quentin Coldwater, a grad student at Brakebills College for Magical Pedagogy, has been fascinated by the magical fantasy world since he was young. But as he has gotten older, Quentin and his 20-something friends have discovered that the magical world they read about as children is not only real, but poses dangers to humanity. While studying at the secret upstate New York school, the friends struggle to cope with the aftermath of a catastrophe that befalls the institution. The fantasy series is based on a series of novels by Lev Grossman.

After Jo, a police chief, takes in a young child she finds near the site of a mysterious accident, she soon discovers the girl has no memory of what has happened or who she is. The investigation into the history that led up to the accident -- and questions as to how and why it happened -- draws the woman into a conspiracy larger than she ever imagined, with the child's identity at the center of it.