Tensions fly when the Browns hit the road for their Spring Break trip along historic Route 66.

Kody is frustrated about his role in the decision making process of the family. Do the wives agree that he is not in charge?

The Brown family from TLC's "Sister Wives" give their opinions on the best parts of a polygamist marriage.

Maddie explains her dating do's and don'ts and why polygamy is not in her future.

The Browns from TLC's "Sister Wives" share their thoughts on their kids following the polygamist lifestyle.

The Browns from TLC's "Sister Wives" talk about the similarities and differences between monogamist and polygamist marriages.

The Browns reach the last stop on their road trip, as they meet the Richards, a Christian polygamist family.

The "Sister Wives" and Kody share their thoughts on how to make a polygamist marriage work.

Sometimes when you're in a rush it's easy to lose track of the children. This goes for any parents. With so many kids Cody says he sometimes has take take a note from the farming handbook and count the kids like cattle.

Christine's daughter Mykelti brings a boyfriend home.

The wives explain the definition of plural monogamy. They prefer to be more of a cohesive family unit. While it does take work, they are willing to commit to a life together.

The Browns get a scare when Truely falls ill.

Mariah has a special memory of Kody's dad Winn who passed away recently.

Kody's first wife Meri tells him she's going back to college now that their daughter is away at school.

The Browns go to San Francisco, and the sister wives do some shopping.

During the ceremony several of the children get choked up when saying what they are thankful for, many of them have learned valuable lessons from their parents.

When Truely gets sicks, all of the Brown's must keep the faith that she will make a quick recovery, especially the children.

There's never a dull moment when Christine has indulged her sweet tooth.

Mariah is off to college soon, and everybody will miss her.

There is a new baby coming., and the younger 'Sister Wives' kids are getting excited.

Mariah has a special memory of Kody's dad Winn who passed away recently.

Maddie and the sister wives are having a blast at Maddie’s bridal show, but the awkwardness sets in when the bridesmaids bring out a train of lingerie.

The Browns are making party plans and dad Kody wants to put a limit on the number of kids allowed.

Tony and Mykelti see each other all dressed up for the very first time on their wedding day.

The Brown family opens up like never before in the new season of TLC's 'Sister Wives'

Mykelti and Tony officially announce their engagement to the sister wives and Kody, but their timeline for the wedding throws the family into a frenzy.

After some nudging, Mariah finally tells her mother about her new girlfriend, Audrey.

Robyn prepares Sol's bedroom to also include new baby.

There is stress surrounding Maddie’s wedding dress because she has lost so much weight and it simple doesn't fit.

Sometimes when you're in a rush it's easy to lose track of the children. This goes for any parents. With so many kids Cody says he sometimes has take take a note from the farming handbook and count the kids like cattle.

The wives explain the definition of plural monogamy. They prefer to be more of a cohesive family unit. While it does take work, they are willing to commit to a life together.

Madison announces her engagement to the family