Three years after millions of people – some 2% of the world’s population – vanished into thin air, residents of Mapleton, NY weigh the pros and cons of a “Heroes Day” tribute to the local “Departed.” Attempting to maintain a sense of normalcy in his strained community, police chief Kevin Garvey faces additional challenges at home with his daughter, Jill, who’s lost in a cloud of apathy with her friend Aimee, and son, Tom, who has gravitated to a cult led by the charismatic Holy Wayne. Also of concern is a silent, white-clad group of chain-smoking men and women called the Guilty Remnant, who team up in pairs to stake out people and places around town. As tension in Mapleton escalates, the lives of Laurie, an unexpected member of the Guilty Remnant, and Meg, a recently engaged young woman, converge.

Laurie’s resolve is put to the test in the wake of a brutal hate crime. After his latest initiatives to maintain the peace in Mapleton fall short, Kevin turns down an outside offer to rid the town of its problems. Matt brings his pulpit to the street. Meg takes on a new role.

An unexpected ally helps Kevin get out of a jam near the town of Cairo. Meanwhile, an elaborate Memorial Day initiative by the Guilty Remnant plunges the town of Mapleton into chaos. Holy Wayne grants a final wish, Tom copes with his new reality. Nora makes a life-changing decision.

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.

Some 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 some haunting secrets.

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. Season Two Finale.

In her official capacity as fraud investigator for the Department of Sudden Departure (D.S.D.), Nora travels to St. Louis to investigate a possible scam that involves convincing the family members of The Departed there’s a way to see their loved ones again.

Nothing is answered. Everything is answered. And then it ends. Series Finale.