Based on the IDW Publishing Comic, "Wynonna Earp" follows Wyatt Earp's great granddaughter as she battles demons and other creatures. With her unique abilities, and a posse of dysfunctional allies, she's the only thing that can bring the paranormal to justice.

After years away, Wynonna Earp (Melanie Scrofano) has traveled back to her home town of Purgatory to reluctantly take on the role destined for Wyatt Earp's heir: Demon protector. Her enemy: Revenants, the resurrected (and twisted) souls of the criminals Wyatt Earp once took down. Using only her wits and her wit, Wynonna, along with sister Waverely Earp (Dominique Provost-Chalkley), associate Agent Dolls (Shamier Anderson) and Wyatt's cursed-with-immortality-best-friend Doc Holliday (Tim Rozon), must try to stop the Revenants from taking over the town - and escaping into the world.

The new season will see Wyatt Earp's great-great-granddaughters Wynonna and Waverly once again take on the demons that plague their hometown of Purgatory, with the titular gun-totting hero once again wielding the famous lawman's special abilities. But things are going to get tricky for the Earps and their allies -- which include Agent Dolls, Officer Nicole Haught, and Doc Holliday himself -- as they'll be going up against a whole new realm of evil now that other paranormal beings can enter the Ghost Triangle where their town exists.