Legal dramas, cat fights and racial tension will explode on “The Real Housewives of At­lanta” – making its upcoming fourth season the most shocking ever!

All the Georgia peaches will be back for the Nov. 6 premiere, along with a new cast member, ex-con Marlo Hampton, who butts heads with fan favorite NeNe Leakes.

“NeNe has legal­ly separated from her husband Gregg, and she doesn’t waste any time getting out on the dat­ing scene,” divulged an insider close to the Bravo show. “But she surprises everyone when it’s time to sign her divorce papers and she cries like a baby.”

NeNe’s sensitive side disappears when newbie Marlo confronts her about rumors that she dated NFL player Charles Grant, who’s Marlo’s fiance!

Cameras record pregnant housewife Kim Zolciak’s first sonogram and sur­prise baby shower, and even follow her into the delivery room as she gives birth to son KJ, whose dad is NFLstar Kroy Biermann. “The drama begins when Kroy has to get back to work, and Kim starts looking for a new home while juggling a new baby and her two daughters from a previous relationship,” said the source.

Meanwhile, songwriter Kandi Burruss, formerly of the R&B group Xscape – who mentored Kim’s mu­sic career – has launched a new line of sex toys.

“Surprisingly, Kandi and Kim get into a nasty argument about the race of Kim’s baby, and allegations of racism are thrown around,” said the source.

After losing her home to foreclosure and having her Aston Martin repossessed, housewife Sheree Whitfield hires co-star Phaedra Parks, a lawyer, to sue her ex-husband, former NFL great Bob Whit­field, for back child support.

“Also, look for a huge blowout between Sheree and NeNe, with NeNe yelling, ‘I’m rich, B****!’” the source revealed.

“Sheree yells back, ‘Rich? You must not know what rich is – with rich you would get your teeth fixed!’”