On her 27th birthday, Wynonna Earp returns to her home town of Purgatory when her uncle is brutally cuddled. After the funeral, Wynonna learns that the revenant demons of the outlaws that her great-great-grandfather Wyatt killed are back and looking for revenge... and only Wyatt's fabled Peacemaker can send them back to Hell.
Wynonna attracts some unwanted attention after returning to Purgatory; at the same time, she struggles to keep her impetuous nature in check while trying to conform to the rules imposed by the Black Badge Division. In other happenings, drifter Henry makes a deal he may not be able to honor.
Wynonna investigates when a posse of Revenants go on a killing spree, which she concludes has a darker and more sinister point behind it. Meanwhile, Waverly challenges Henry's motives and sets out to unearth more of his past.
A revenant strikes at the guilty by cutting their throats... and Wynonna is his next target. Meanwhile, the secret of Doc's longevity is revealed, as well as his reason for parting ways with his friend Wyatt.
Wynonna and Dolls make a daring raid on the trailer park run by the lead Revenant; Henry comes face to face with an old nemesis.
Wynonna looks for the sixth member of the Seven, and the trail leads her to a cannibal revenant. Meanwhile, Xavier tries to deal with his addiction, while Waverly unravels a mystery that Curtis left for her.
Guests at an engagement party hosted by Waverly are put in grave danger as Henry remains focused on having his revenge. Meanwhile, Wynonna teams up with an unlikely ally to investigate a hugger who's targeting young women.
Henry and Dolls put aside their differences to infiltrate a Revenant hive; at the same time, Wynonna refuses to be a serial hugger's next victim.
Wynonna attempts to deal with her encounter with the last of the Seven and she also becomes swept up in Henry's vendetta.
After listening in and hearing Bobo mention an archenemy, Wynonna and Xavier go to the Pine Barrens Dolls make their way to the snowy Barrens to find the weapon that makes Bobo's nemesis so dangerous. Meanwhile, Doc learns how to drive after Wynonna gives him Constance's car.
While Wynonna and Waverly try to deal with the return of their older sister, two female Revenants are unleashed and hug a high-roller. Meanwhile, a mercenary team invades the homestead.
An admirer who has a shocking vendetta threatens the town. Wynonna attempts to outwit Bobo Del Rey and protect Dolls at the same time.
Wynonna pays a horrific cost while facing off with a terrifying nemesis; Waverly learns something about her past; Dolls makes a tough choice.