When did Sister Wives Season 3 Episode 18 air?
Sister Wives Season 3 Episode 18 aired on December 23, 2012.

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.
Direct answers for episode-level questions and details.
Sister Wives Season 3 Episode 18 aired on December 23, 2012.
Runtime information for this episode is not available yet.
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