Following the Browns, a polygamist family comprising of a husband, three wives and 13 children that is on the verge of a change that could transform its dynamic.

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 fiancee Robyn, while first wife Meri struggles with feelings of jealousy

Robyn helps out with the children while Kody and pregnant third wife Christine go to the hospital

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.

The Browns head to New York to appear on national television for the first time as open polygamists in the Season 2 opener. Back at home, the kids attend their first day of public school.

The Browns visit Kody's family in Wyoming, hoping to find some tranquility in the wake of the police investigation involving the family.

Kody and Janelle plan a private camping trip that results in a discussion about family finances. Meanwhile, Robyn opens up about her insecurities of not wanting to be a burden on the family financially.

Candy, pumpkins,and Polygamy: The Brown family celebrates Halloween with 16 trick or treaters, 21 colorful costumes, and 24 great pumpkins.

It's Wife #3's turn with Kody! Christine and her kids head to Vegas so they can spend time some alone time with their dad in her favorite vacation spot. Meanwhile back at home, Meri decides to take the rest of the family out for a bowling night.

Meri goes to the doctor for a cancer screening, but will the results be more than she bargained for? Meanwhile the wives are doing something they've never been able to do before: invite their monogamous friends over for dinner!

To celebrate Christmas, the Browns head off to a snow-bound cabin in the mountains to get away from the pressure of their ongoing police investigation. And later, a decision will be revealed that will affect the families lives once again.

The Sister Wives struggle to accept that this will be their last Christmas in Utah; a massive change to the family dynamic.

Kody, Meri and Robin realize that there are no polygamist houses to be found in Las Vegas; a surprise birthday party for Meri.

Kody must tell the younger children that they will be leaving Utah forever; plans turn to panic when the media gets news of the move.

The Brown family starts to build their new life away from Utah; one of the wives has news to announce to the family.

Robyn finally announces her new pregnancy; the older teens' discontent over their new life starts to bubble to the surface.

Kody, Christine and Janelle experiment with working in real estate; the teens are going out with new friends in Las Vegas; Robyn and Kody receive a scare.

After finding out Robyn's been spotting, she and Kody rush to see their midwife to find out what's wrong. Will their worst nightmare come be a reality? Later, the wives are on a mission to make over one room in each house.

We follow Kody through four days of his astonishing life, moving each day to the house of a different wife. Hear how his family and relationships with his wives has changed since the move. Plus, we finally learn the sex of Robyn and Kody's baby.

Kody and his wives finally return to his hometown for the first time as open polygamists. How will his childhood friends receive him? Later, after revealing the sex of the baby, Robyn and Kody finally decide to announce the name.

The sisters open up about an issue that has bothered all of them—their weight! Watch the sisters speak candidly about their battle with the bulge and see their attempts to the shed pounds as they they make their way to a gym for a body fat analysis.

Christine's daughter, Ysabel, and Robyn's daughter, Breanna, are moving out—to Meri's house. But will Meri be in over her head having them temporarily under her roof? Then, the Browns are off for some camping fun, but the teens have different ideas.