The cast of Teen Mom OG returns to MTV next month for the show's sixth season.

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Following a number of cast announcements last week, the trailer for the new installment was released on Monday, and in it were several dramatic moments amongst the women of the show.

"The girls (and their guys) are back! Teen Mom OG is set to premiere on Monday, Jan. 4, and all four ladies—Farrah Abraham, Catelynn Lowell, Maci Bookout, and Amber Portwood—are returning," Us Weekly revealed on Monday.

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During one scene of the sneak peek, Abraham was seen chatting with her executive producer, when she suddenly started yelling, claiming she wanted to quit the show to focus on other, more profitable, projects.

"I don't need to be a part of a trashy a** show anymore because I make millions of dollars doing other s**t," she explained.

Abraham was then heard muttering, "What a dumb, twisted mother f**ker."

Elsewhere, Lowell and her longtime partner, Tyler Baltierra, with whom she welcomed her second daughter earlier this year, were seen preparing to wed.

“I’m nervous,” Lowell admitted to her partner in the clip. “You know, some people get married and everything changes.”

Check out the full Teen Mom OG trailer below, and don't miss the season premiere on Jan. 4 at 10 p.m. on MTV.