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.

Desperate to stop Angelina, Ben makes a risky move that yields unexpected consequences. A family emergency sends Michaela in a different direction.

Michaela and Jared make the most of their arrangement. Angelina receives support from Eagan. Panic grips the detainees amid devastation at the facility.

Michaela heads to a dock with Jared to look into Ben's Calling. Saanvi walks Cal through a daunting task. A dark presence infiltrates the Stone family.

The consequences of Ben's actions tests his marriage and sends Grace reeling. Michaela makes a difficult decision regarding Saanvi's secret. Cal, following his intuition, provides secret refuge to an outcast.

As terrifying plagues descend on the detention center, Saanvi scrambles for a solution and Michaela steps up in a crisis. Cal attempts to reach Angelina.

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

The passengers from Flight 828 find themselves under government scrutiny as they struggle to resume their lives. Michaela is forced to confront the fact that Jared is married to her once-best friend, while Ben tries to help a fellow passenger reconnect with his son. Cal is approached by an obsessive stranger, as Grace and Olive disagree on whether or not to reveal a devastating secret.

Ben and Michaela investigate a shocking murder in fear that it's connected to Flight 828. Meanwhile, Ben struggles to accept the life Grace led in his absence, while Olive and Cal realize that being twins after five and a half years apart is harder than they thought.

While in pursuit of criminals, Michaela is sidelined by devastating news. Ben teams up with a gifted 828er to aid a young teen. As Grace confronts ancient family wounds, Olive explores ancient mythology in hopes of helping all the passengers.

Mick questions Ben's developing relationship with Eureka. A new adversarial group suspicious of Ben takes drastic measures to gain answers. Saanvi proves her worth through a scientific breakthrough. Angelina reaches a breaking point.

As Mick and Ben join forces to aid a desperate Flight 828 passenger, Saanvi grapples with a discovery at Eureka, and the burden of secrecy that comes with it. Grace and Angelina's bond deepens. A maturing Cal enlists Zeke's help in a personal matter.

Ben reunites with a duplicitous foe. Michaela and Zeke's dinner party with Jared and his new girlfriend is halted by a calling that ignites the Stone siblings to save the life of one of their own. Olive's friendship with Levi blossoms but is tested.

Ben’s pursuit of a vulnerable Passenger’s Calling lands him in the crosshairs of an enemy. Michaela unearths a dangerous arsenal of 828 hate. A seemingly natural disaster leads Saanvi to make a bold move. Angelina puts her connection with Eden to a dangerous test.

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

Michaela finds a welcome distraction in helping Jared with an investigation. Cal tests a new ability. Ben and Saanvi try to decode a mysterious message.

As the Death Date nears, Callings begin to take a toll on Cal. The group sends out a cry for help. A familiar face provides hope in an unexpected place.

With the detained passengers secretly moved and subjected to painful experimentation - and Cal's health directly linked to them - Ben takes advantage of an old friend to find out where the passengers were taken. Meanwhile, a mysterious new version of the calling pulls Michaela into a murder investigation that has deep personal ramifications for her.

Michaela's mystifying, next-level calling launches her on a mission that brings her relationship with Jared to a head. Determined to protect his family, Ben explores an alternate meaning to Michaela's calling that leads him to a new alliance and a powerful new adversary. Cal's struggle with Ben's absence from home forces the Stones into an agonizing confrontation that could alter the family's fabric forever.

When Grace and Cal are involved in a suspicious hit-and-run, Ben is determined to get to the bottom of it. Michaela investigates a brutal attack at the Church of the Believers, but finds her efforts stymied by Adrian's refusal to cooperate. Zeke is tested when he tries to make amends with someone from his past.

In the wake of a devastating tragedy, Ben tries to connect with a despondent Olive. Michaela questions Jared's loyalties, and Saanvi shares a medical breakthrough that could change the course of all their lives.

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

Cal tries to understand his scar. A Calling leads Michaela to 828 co-pilot Amuta, who sheds light on what he saw. Ben makes an emotional connection.

A shared vision brings Michaela and Kyle together for a heartbreaking reason. Meanwhile, Eagan offers Ben valuable information — but at a price.

All signs point to the end of the Earth, spurring the Stone family and the passengers to work together and decipher cryptic clues before time runs out.