Jarden, Texas was renamed "Miracle" after it was discovered that no one had departed. The town has since become a magnet for tourists and people who are convinced it is special and can keep them safe. Among the local families is the Murphys: the father, John, the mother, Erika, and their twins, Evie and Michael. While trying to protect his town from frauds and charlatans, John gets an ominous warning from a man who claims to have psychic powers. Soon afterwards, Kevin Garvey, Nora Durst and Jill Garvey show up in Miracle. This newly formed "family" left Mapleton to start over, but Kevin cannot seem to escape his past. The Murphy family and Kevin subsequently experience a mysterious event that will that change their lives forever.

Kevin, Nora and Jill try to pick up the pieces in the aftermath of the Mapleton riots, but problems from the past keep resurfacing. The new Garvey clan finds a fresh start in the safety of Miracle. Nora makes an impulsive choice, while Kevin gets entangled in the Murphy family's problems.

Laurie and Tom Garvey's work to rescue lost souls takes a toll on theirs. Laurie seeks to spread the word about the Guilty Remnant's dangers, while Tom's infiltration of the cult uncovers a whole new nest of problems.

In the midst of an earthquake, Nora awakens to find Kevin missing and her hopes of safety in their new town dashed. The Murphys are left reeling after Evie's disappearance. Kevin returns home, but without his memory of the night before or his cell phone, which would link him to the missing girls. Meanwhile, an old enemy makes her return in an unexpected way.

Rev. Matt Jamison takes his vegetative wife, Mary, outside Miracle to seek answers about her condition, but their lives take a dangerous detour when he is barred from returning to town. Racing to get her back into Miracle, he struggles to keep Mary safe from desperate tourists squatting just outside the town's gates.

Unexpected visitors get under Nora's skin and she becomes preoccupied with a burning question about herself. Kevin's predicament becomes impossible to ignore. Erika finds an unlikely ally and reveals haunting secrets.

Nora gives Kevin and Jill news they weren't expecting. Kevin deals with the fall-out of Nora's news and explores his options re: tackling his Patti problem head-on. Jill goes on a solo adventure that could only happen in Miracle. Laurie makes a rash decision that affects the Garveys.

In the wake of Kevin's desperate decision to vanquish Patti, questions and answers emerge as the world adjusts to the repercussions of what comes next.

A personal loss and subsequent pilgrimage to Miracle offer clues on why Meg embarked on her path as a Remnant crusader. After a fallout with Laurie, Tom seeks to reunite with Meg.

Kevin comes clean to a skeptical John about his connection to Evie's disappearance, as Miracle faces an unexpected threat on the fourth anniversary of The Departure.