NJ Housewife Teresa to Danielle: "B*tch, I'm Gonna Pin You Down!"

So freakin' intense!

On the upcoming, two-part Real Housewives of New Jersey reunion, Danielle Staub reunites with adversaries Teresa Giudice, Jacqueline Laurita and Caroline Manzo for the first time in over a year.

The ensuing chit chat -- refereed by Bravo's Andy Cohen -- immediately escalates into what appears to be the most violent, high-pitched, animalistic housewives reunion ever.

Screams Giudice to Staub: "B*tch, I'm gonna pin you down!....Do not break up my family!" Later, she throws a pillow at Staub, yelling, "I f***ing hate you so much!"

Adds Manzo: "You need to be medicated."

In another moment, Giudice even gets physical with Cohen, who attempts to restrain her. Later, Cohen literally runs after another housewife storming off the set.

Watch the amazingly explosive sneak-peek now!