With Ben and Jennifer in peril and the Cleanse underway, the family unites for one last fight to save the world — and end the infinite devastation.

Lila and Five get lost traversing various timelines. Meanwhile, Viktor and Reginald aim to stop Ben, whose union with Jennifer sets forth a lethal path.

The group splits up to find Jennifer. Later on, they pay Reginald a visit, confronting memories that hold critical clues to their mission.

Klaus's relationship with death proves more complicated than anyone knew. Viktor finally learns what happened to the Umbrellas' mothers.

With their Number One missing, the Sparrows take a hostage. Allison makes a painful discovery. Klaus takes Five on an eye-opening road trip.

As people start disappearing in waves, Five and Lila reluctantly team up to solve their time-travel problem. Klaus sees a new side of his father.

With their powers restored, the gang embarks on a mission to find Sy Grossman's daughter. But they soon encounter hostility in a seemingly quaint town.

After learning the truth about Jennifer, the crew sets out to find her and Ben. Klaus hustles to escape his plight. Five and Lila try to change the past.

Five chases down Pogo, Viktor and Harlan attempt a transfer of powers, and Diego and Lila venture beyond the wall of the White Buffalo Suite.

While Allison searches frantically for Ray, Vanya contends with a crisis at the farm, and Five, Diego, and Lila crash a party at the Mexican Consulate.

Luther and Sloane hatch a plan to end the war between the families. Viktor reconnects with someone from the past. Five has an unsettling encounter.

The family teams up to find a kidnapped Viktor while attempting to adjust to normal life. Lila and Five probe a mysterious group called the Keepers.

Allison gives Ray a peek at her powers, Dave visits Klaus's compound, the Handler offers Five a deal, and the siblings meet their father for dinner.

Summoned to an emergency meeting, the siblings hatch very different plans for how to spend their last six days on Earth. Lila confronts her mother.

With the universe collapsing around them, the gang gathers for a day of romance, awkwardness and debauchery at the Hotel Obsidian.

Shaken, the family confronts the deadly mysteries of the Hotel Oblivion — and the growing suspicion that their mission is not what it seems.

In 1989, Lila digs up one of her mother's secrets. The families join forces to fight the Kugelblitz. Reginald teaches Klaus to harness his powers.

Worried their mother is hiding something, Luther and Allison call a family meeting. Cha-Cha and Hazel catch a big break in their hunt for Five.

The story of Luther's transformation emerges. At the motel, Klaus puts Hazel and Cha-Cha's training to the test. Allison grows suspicious of Leonard.

An incident at the bar leads Luther to Vanya. Five finds an unsettling surprise in the film Hazel left behind. The cops come after Allison's husband.

After Five travels to 1982 to carry out his new mission, the siblings face a flurry of difficult decisions. Carl issues a warning to Vanya.

After sharing the story of his time travel with Vanya, Five hunts for the owner of a fake eye. But two mysterious assassins are hot on his trail.

Sparks fly when Vanya finds her siblings holding an emergency family meeting without her. Five starts his new job at HQ. Cha-Cha faces a dilemma.

With a second chance at the day, the siblings team up to find the mysterious "Harold Jenkins." Leonard takes Vanya into the woods to test her powers.

As the sit-in approaches, Allison reconnects with Klaus, the Swedes chase Vanya into a cornfield, and Luther makes a distressing discovery.