On the night of her 27th birthday, Wynonna Earp - descendent of the great gunslinger Wyatt Earp - reluctantly returns to her hometown to take on her family's legendary curse.

Wynonna struggles to marry her impetuous nature with the rules imposed by the Black Badge Division, just as her return to Purgatory has attracted unwanted attention. Henry the drifter makes a bargain he may not be able to uphold.

A posse of Revenants goes on a killing spree, but Wynonna soon realises their random murders have a darker, more sinister purposed. Waverly challenges Henry's motivations and sets to to unearth more of his past.

Wynonna and Dolls must act quickly as Purgatory residents start dropping dead, killed by an apparently invisible assailant.

Wynonna and Dolls make a daring raid on the trailer park run by Purgatory's lead Revenant. Henry finds himself face to face with an old friend - and an old nemesis.

Wynonna hunts down one of the Revenants responsible for the attack on the Homestead fifteen years earlier. Waverly unravels a mystery left behind by her Uncle Curtis.