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.

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.