Meet the Browns, a seemingly regular family on the outside, but with a twist once you step inside their home. We also learn this extraordinary family is on the verge of another huge change that could transform the family’s dynamic forever.

Kody heads south to court his potential fourth wife, Robyn. Meanwhile back home, the wives express their true feelings about their new possible sister wife as they make preparations for Christine's new baby.

Kody and his teenage daughters throw a birthday party for his new fiancée, Robyn. Meanwhile, 1st wife Meri struggles with feelings of jealousy as the whole Brown clan moves Robyn and her anxious kids closer to the family home.

Kody's fiancée Robyn helps out with the kids while Kody and his pregnant third wife Christine go to the hospital. A week overdue, they must make an important decision on whether or not to induce labor.

While the three wives buy a friendship ring for Kody's fiancée Robyn, Kody prepares to celebrate his 20th Anniversary with his first wife, Meri. But when nothing goes as planned, will Kody end up in the dog house?

As the wedding day nears, the three wives help fiancée Robyn pick a wedding dress, a cake, and a venue for their unique polygamist wedding reception. Meanwhile, it’s Janelle’s birthday and Kody has a special trip planned just for the two of them.

The big day is finally here! Follow Kody and his wives as they make Robyn officially wife number four. See this extraordinary family as they celebrate the newest additions to their family and prepare to embark on a new chapter in their lives.

NBC's Natalie Morales sits down with the Browns from TLC's smash hit "Sister Wives" for a candid discussion about love, marriage, jealousy and what the future may hold.

Kody and new wife Robyn are off on their honeymoon spending time surfing and visiting a nearby zoo. Meanwhile Meri, Janelle and Christine stay back home with the kids, but will they have a hard time coping while Kody is away?

Desperate to get their family back together, the Browns put money down to hold land in order to build homes altogether on one cul de sac. But the shockingly bad credit of one wife could hold back the entire family.

The teachers are in for a big surprise when Kody and the wives all attend Parent/Teacher conferences. Later, Logan graduates from high school, but not without some family mayhem. And Kody demands an answer from Meri about having another baby.

The Browns plan a vacation with their polygamist friends, the Dargers as they head to the beach for some polygamist fun in the sun. For the first time we'll meet another polygamist family & discover how they're the same, or different from the Browns.

The dark side of polygamy is uncovered when the Brown teenagers volunteer for an organization that helps people escape from abusive polygamist families.

Tensions rise as the Sister Wives fight for the bonus features they want for each house. Who stays in budget and who goes way over? Later, the Brown family digs deep when the family pet is ailing. A compromise leaves them all in tears.

With the Sister Wives living separately for over a year now, the Brown family structure is falling apart. After stressing out over finances, the wives try hard to start a web business, and Christine makes another attempt to pass her real estate exam.

The wives plan a dream pilgrimage across country to Nauvoo Illinois, the birthplace of American polygamy. But the three-day road trip turns into much more than they bargained for as tempers start to flair and relationships get tested.