Teen Mom OG Trailer: Farrah's Back and No One Is Happy About It

They're finally back!

MTV has released the first trailer for Teen Mom OG and, if possible, it might be more drama-packed than ever.

All the original girls -- Farrah Abraham, Maci Bookout, Catelynn Lowell and Amber Portwood -- are returning, but that wasn't always the case. Abraham wasn't part of the reboot initially, to the other three's delight.

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"It's just me, Maci and Amber. Farrah's not on anymore," Lowell says in the trailer. Suffice it to say, they are not pleased when they learn Abraham is back in the fold.

Meanwhile, there are not one, but two baby announcements, and a shocking proposal.

Check out the full trailer below. Teen Mom OG premieres Monday, March 23 at 10/9c on MTV.