Robyn begins having contractions and the rest of the family reacts.
Kody goes out with the guys to the Las Vegas strip and the women stay home to help Robyn with the nursery.
The sister wives visit the Las Vegas strip and Kody stays at home to baby sit.
The older Brown childrenvisit colleges while the elder Browns speak to the students at a religion class in Boston.
A couple from the Browns' church asks the family questions about polygamy.
The family celebrates Independence Day by going camping. Two of the young girls move in with Meri.
The wives try to lose weight and visit a gym for fat analysis.
The family visits Kody's hometown and Robyn's baby's name is revealed.
Kody now has to move himself everyday to a new house with a new wife, and everything is changing. Robyn & Kody also learn the sex of their baby.
Robyn & Kody get a scare and are rushed to their midwife. Meanwhile All the other wives have a challenge to do over on room in each others houses.
Now that they are living in the City of Sin, Kody and the rest of the wives have a sit down to make sure everyone knows the does-and-do-nots of what IS expected of them all.
Robyin & Kody announce they are expecting their first child. Some of the older kids are not happy with their living arrangements.
Everyone tries to get settled in Sin City while they stay at a vacation house looking for their new houses.
Kody and the rest of the wives decide it is time to tell the younger children they are all moving-in three days. Everyone is extremely upset and tension is high when the media gets hold of their move and the houses they put an offer on are declined.
Meri goes to las Vegas to look for their new homes with kody and Robyn. Back at the house everyone is planning for Meri's 40th birthday party surprise.
The family celebrates their last Christmas in Utah - unknowing to the younger kids that they are going to move out of state. The older kids are sad about it, while the younger kids are thrilled to be in the show & the adults try to keep everyone happy.
The family heads to an old cabin up on a mountain for their last family Christmas. However the travel time takes longer than expected.
the Browns want to thank some of their non-polygamist friends for sticking by them and they all plan a huge dinner party for them. Meanwhile Meri is off at the doctors for something she has been ignoring since her sister died 5 years ago of it.
Kody, Christine, and her kids go on a vacation to Las Vegas. Back at home, the other moms and kids go bowling.
The Browns visit a pumpkin patch, then spend the afternoon carving pumpkins and getting costumes ready for 16 kids and 5 adults - but can they make it before the trick-or-treaters come?
Janelle and Kody go on a camping trip. Meanwhile, Robyn searches for a job as the adults attempt to balance their financial situation.
With a pending legal investigation and continued paparazzi surveillance, the Browns decide to take a trip to Kody's parents' ranch in Wyoming.
Kody and the sister wives travel to New York to appear on national TV and at home, the children have their first day back at school. After their TV appearance, however, they receive some frightening news.