‘RHOC’ Season 19 Trailer: Gretchen Returns, Accuses Tamra of Having Affair

The friendship lines are blurred — and lies are spreading like wildfire — in the official trailer for season 19 of The Real Housewives of Orange County, all thanks to Gretchen Rossi and her onscreen return.

“There’s a snake in this group,” Shannon Beador says in the trailer, which dropped on Thursday, June 5, as the group of ladies are each hooked up to a polygraph machine.

Tamra Judge teases, “No one likes a liar,” as glimpses of her castmates all in the hot seat flash across the screen.

Gretchen, meanwhile, makes her presence known this season after returning as a “friend” following a 12-year absence. “Make it make sense! Why?” Gretchen, 46, screams at Heather Dubrow during one scene.

“12 years you’ve been going after me!” Tamra, 57, yells at Gretchen, hinting that their friendship drama will be front and center when the show returns on Thursday, July 10. “It’s not the same thing,” Gretchen fires back.

Elsewhere in the trailer, Emily Simpson reveals that Gretchen is allegedly spreading a nasty rumor about Tamra, which only adds fuel to their feud.

“Gretchen said that you had an affair,” Emily, 49, tells Tamra in the video. Tamra later tries to defend herself, explaining that someone is “lying.”

Where Gretchen Rossi Stands With the ‘RHOC’ Cast Before Her Return

Gretchen, who starred on RHOC from seasons 4 to 8, isn’t the only one stirring the pot this season. Katie Ginella finds herself at odds with several cast members, including Tamra and Shannon, 61.

“Katie’s like a silent assassin,” Tamra claims, while Shannon alleges that Katie, 41, did something “illegal” during a restaurant blowout.

Gina Kirschenheiter, meanwhile, is facing relationship issues with Travis Mullen, while Emily is struggling with her son’s mental health ups and downs.

‘The Real Housewives of Orange County’ Season 19: Everything We Know So Far

“Travis’ son, we haven’t seen [him] in three weeks. He’s gotta go back to court,” Gina, 41, explains.  “Whenever Travis and I are happy, we pay for it.”

Emily, for her part, has a heart-to-heart with her husband, Shane Simpson, over their son Luke being “in crisis,” but she doesn’t feel like her spouse is hearing her. “We’re going to end up divorced,” Emily says through tears.

As friendships and relationships are falling apart, Jennifer Pedranti and her fiancé, Ryan Boyajian, are gearing up for their wedding — but it doesn’t look like it’ll be a smooth walk down the aisle.

“I don’t want Tamra at our wedding,” Jennifer, 47, yells, before she and Tamra get in a heated exchange.

Shannon Beador Reacts to Rumored ‘RHOC’ Filming Drama With Tamra Judge

Season 19 will also include the women traveling to New Orleans and Amsterdam. “Take it easy, grandma,” Shannon quips after seeing Tamra flash the crowd on Bourbon Street.

The Real Housewives of Orange County returns to Bravo Thursday, July 10, at 9 p.m. ET. Episodes will be available to stream the next day on Peacock.