It’s safe to say that Season 4 of the Real Housewives of Beverly Hills has been one of the most tension-filled seasons to date. But if this sneak peek of the reunion is any indication, we ain’t seen nothin’ yet!

As the Housewives arrive at the studio for taping, all of them are visibly nervous as the prospect of what the day holds. “I did not sleep for one second [last night],” says Brandi Glanville with an anxious shy. “Xanax is in my bag... and my stress threat deodorant. It’s really probably the hardest day of the year.”

It looks like Brandi wasn’t overreacting because the reunion quickly explodes into name-calling, back-stabbing, hair-pulling. (Well, not actual hair-pulling. We’ll save that to Atlanta and New Jersey.) Following in the trend of this season, it seems like all the ladies are out to get Lisa Vanderpump to confess to numerous wrongdoings.

“You can manipulate anyone,” says Brandi. “[You’ve been a very good friend to me,] and you’ve been a very sh—y friend at the same time. [...] If there was a fire burning and we were both in it — there’s [Eddie Cibrian’s former mistress] Scheana [Marie] and there’s me — and you could save one person, who are you gonna save?!”

“You don’t attack my sobriety!” adds Kim Richards. “I missed a huge chunk of my f—ing life, so I’m sorry if I missed a party or two!”

It’s not just Lisa that’s coming under attack. It seems Kyle Richards and Carlton Gebbia haven’t managed to sweep their issues under the rug. When Kyle accuses Carlton of being a “liar, a hypocrite, a phony, and fraud,” Carlton is quick to fire back.

“And you’re a bigot,” she exclaims. “You are just trash.”

Watch this sneak peek from the Real Housewives of Beverly Hills Season 4 reunion, then make sure to tune in when it airs on Monday, March 17 at 9 p..m.!