Wynonna Earp cast
The cast of Wynnona Earp at the discussion of the TV show at Camp Conival in San Diego. From left: Melanie Scrofano, Shamier Anderson, Dominique Provost-Chalkley, Katherine Barrell and Tim Rozon. Wikimedia Commons/iDominick

The "Wynonna Earp" cast, including Melanie Scrofano as Wynonna, Tim Rozon as Doc Holliday, Katherine Barrell as Nicole Haught, Shamier Anderson as Deputy Marshal Xavier Dolls and Dominique Provost-Chalkley as Waverly Earp, will have an upcoming episode titled "She Ain't Right," which airs on Syfy on Friday, June 30. It will feature Wynonna trying to save Waverly's soul. Read on to learn more about the Canadian-American Western horror and supernatural TV show.

Spoiler alert: This update contains more 'Wynonna Earp' spoilers. Read on only if you want to know more about what happens in 'She Ain't Right.'

Earp vs Earp

According to TV Guide, "Wynonna Earp" Season 2, episode 4 will show Wynonna fighting hard for Waverly's soul. A preview of the episode was uploaded on the YouTube channel of tvpromosdb. It shows scenes featuring Dolls becoming a monster and Wynonna learning about it firsthand. Plus, another scene shows Wynonna pointing Wyatt Earp's glowing "Peacemaker" handgun at another bad guy. There's also a scene showing Doc shooting a gun.

'She Ain't Right' guest stars, director and writer

The Internet Movie Database (IMDb) lists Ron Murphy as the director of "She Ain't Right" and Ramona Barckert as the writer. IMDb also lists Tamara Duarte (Rosita Bustillos) and Varun Saranga (Jeremy Chetri) as guest stars of this episode.

'Wynonna Earp' recap of 'Gonna Getcha Good'

The episode before "She Ain't Right" was "Gonna Getcha Good," which aired on June 23. It was directed by Ron Murphy and written by Brendon Yorke. It showed Waverly and Wynonna's homecoming at Purgatory High. However, the special event was marred by a series of deaths linked to an ancient deal with a demon.

Meanwhile, Waverly continued to display alarming changes in her personality, which surprised her loved ones, particularly her sister Wynonna and her girlfriend Nicole. As for Doc, he worked hard to make another copy of Dolls' serum.

"Wynonna Earp" is based on Beau Smith's comic book series. It was developed for TV by Emily Andras.

"Wynonna Earp" episodes air on SyFy in the US every Friday at 10/9c. The episodes after "She Ain't Right" are "Let's Pretend We're Strangers" (air date: July 7) and "Whiskey Lullaby" (air date: July 14). Then, the episodes titled "Everybody Knows," "No Future in the Past," "Forever Mine Nevermind," "I See a Darkness," "Gone as a Girl Can Get" and "I Hope You Dance" (air date: Aug. 25) will be aired on SyFy.

In case you missed it (ICYMI), read this:

'Wynonna Earp' Season 2 episode 3 spoilers: Wynonna deals with a Marzanoik in 'Gonna Getcha Good'

'Wynonna Earp' Season 2 episode 2 spoilers: Wynonna battles spider creatures in 'Shed Your Skin' [VIDEOS]