'You Have to Cut the Head Off the Devil!' War Erupts on 'RHOBH' Season 8 Trailer

The Real Housewive of Beverly Hills is back for season 8, and PEOPLE’s got the exclusive premiere of its explosive trailer.

Erika Girardi, Dorit Kemsley, Kyle Richards, Lisa Rinna and Lisa Vanderpump are all back for another round of action after the hit Bravo show’s record-breaking seventh season — as is original Beverly Hills Housewife Camille Grammer, who starred in the show’s first two seasons and returns this time in the Friend of the Housewives role.

Joining the fray is new Housewife Teddi Mellencamp Arroyave, daughter of music legend John Cougar Mellencamp. Married to husband Edwin Arroyave with two small children and one stepchild at home, Teddi works as a fitness accountability coach and blogger for her site LA Workout Junkie and appears to waste no time getting into the drama.

“Some of these women make it very hard to feel at ease,” she says in the trailer, adding, “I’m not going to back down when I know I’m right.”

Of course, this being Beverly Hills, there’s plenty of surprises. For one, Girardi and Kemsley seem to have moved on from last season’s painful #pantygate, this time hanging out and laughing together.

Their friendship comes as each are immersing themselves in their own businesses, Girardi pouring herself into Erika Jayne’s recording career afterher Dancing with the Stars stint and her upcoming autobiography while Kemsley re-launches her swimwear line after having two young kids.

Richards is busy too, wrapping production on her series American Woman, expanding her retail business Kyle by Alene Too and debating whether to sell or renovate her house. Vanderpump is also focusing on business, taking on the new role as an editor-in-chief of Beverly Hills Lifestyle magazine while still helping run her pet-rescue business Vanderpump Dogs.

After being at the center of the drama for the past two seasons, Rinna appears to be taking a back seat this year as she travels the world with fashion model daughters Amelia Gray Hamlin and Delilah Belle Hamlin. She’s also bonding with Grammer, who PEOPLE exclusively revealed in October is engaged to lawyer David C. Meyer.

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But this being Beverly Hills, there’s still plenty of action in the 90210.

“You have to cut the head off the devil!” Girardi quips to the audience, giving them a sneak peek at the action coming ahead. “This whole thing boils down to three bitches that are competitive over friendship.”

It’s hard to tell who she’s talking about, but it could have something to do with Kemsley, Richards and Vanderpump — the former two who are left stunned when Vanderpump drives off in the end of the clip, telling them, “I’m going home to my husband who would rather spend time with me than you would.”

“You don’t like that it wasn’t about you for a minute,” Richards says to Vanderpump at one point in the trailer, later telling Kemsley, “I would never ever f— you over and I feel f—– over” after Kemsley says, “Don’t f— with me like that, you don’t want that.”

The Real Housewives of Beverly Hills premieres Dec. 19 at 9 p.m. ET on Bravo.