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"Girls" season 4 debuts first trailer

Lena Dunham, Becky Ann Baker and Peter Scolari in a scene from season 4 of "Girls."

HBO

The fourth season of "Girls" now has an official premiere date -- Jan. 11, if you want to mark it down -- and now a new trailer for the HBO series has been released.

This time around, Hannah (Lena Dunham) heads to the Iowa Writers' Workshop and seems to be happy there. As she tells Marnie (Allison Williams), "Honestly, I feel like I made the right decision -- which is a totally new sensation for me."

The trailer also reveals that Marnie is still making music with Desi, Shoshanna (Zosia Mamet) is facing the difficulties of post-college life and Jessa (Jemima Kirke) appears to have gotten into some sort of trouble with the law.

You can see all that, plus a toast from Adam (Adam Driver), in the trailer below: