The girls' bachelorette party road trip for Mellie gets out of control.

Nettie, Kayla and Laura suspect Mellie may be pregnant, despite her denial.

Mellie suffers a pregnancy complication and Kayla's daughter drops a bomb.

Nettie, Kayla and Mellie have a raging fight before Mellie's baby shower.

Mellie moves in with Kayla and Annie which opens old wounds for Nettie.

A fight erupts between Mellie's boyfriend and father of her second child.

Kayla, Annie and Mellie confront Nettie over her internet trash talking.

Dovie organizes a spiritual healing for the girls to work out their issues.

The girls get down and dirty on a dude ranch on a quest to become cowgirls.

The girls receive a tragic phone call that will change their lives forever.

The girls take on Washington, DC, to celebrate Kayla's birthday.

The most outrageous and hilarious moments from past seasons are revealed.

The Browns are a seemingly regular family on the outside, but with a twist.

Kody heads south to court his potential fourth wife, Robyn.

Kody and his daughters throw a birthday party for his new fiancee, Robyn.

Kody and his pregnant third wife Christine go to the hospital.