With the grand opening of the Blackfoot Magic Casino only days away, the Henricksons make last-minute preparations under the skeptical eye of Tommy Flute, son of Bill's partner Jerry. As the feds probe the whereabouts of Roman Grant, Alby has a close encounter with Dale Tomasson, the state-appointed trustee of Juniper Creek's assets. At the compound, Adaleen shares a shocking secret with Nicki, who's under fire for opening a new bank account for Roman. Though her home-shopping business is thriving, Margie makes an on-air slip-up that prompts her boss Beverly to voice concerns about possible burnout. Worried for her safety, Lois offers Frank a piece of her fledgling bird-purveying business. Bill and Nicki's smarmy ex, J.J. Walker, work out an arrangement allowing Cara Lynn to stay at the Henrickson's while attending high school during the week. Ben lands a gig with his Christian rock band and ends up being called into backup duty for another.
Bill considers running for Utah State Senate, but Nicki, Margene and Barb all have different feelings about it. Meanwhile, Sara and Scott decide that they will get married, but not sealed under the church.
Bill heads to Washington, D.C. to obtain support for his run for Utah State Senate but ends up on opposing side of a lobbyist. Elsewhere, Alby deals with his father's legacy all the while becoming attached to Dale.
Pressed by Coburn to state his intentions, Bill gets his family to stage an elaborate rally announcing his candidacy. Surviving an INS raid targeted at illegals working at Home Plus, Bill isn't so lucky when an audit uncovers insurance discrepancies caused by his multiple wives.
Bill continues to work on his campaign as Nicki throws herself into helping out. Bill worries Coburn as he wants to take down Bill. Frank pays a visit to the reservation.
Bill wants more exposure for the casino. Ben and Jodean are further involved in Lois and Frank's bird enterprise. Ana shows back up at the Henricksons with some startling news.
Bill and Joey head to Mexico to rescue Lois and Frank. Margene tries to stop Ana from leaving the country. Barb and Tommy come across a surprising event at the casino.
Bill worries about Marilyn's plan that might jeopardize his political career. Barb draws the wrong kind of attention at an all-ladies event. Sarah's plans for the future shocks her family.
In the season finale, the state senate election comes around and Bill and Marilyn work on last minute arrangements. A scandal in Kansas makes the Henrickson family rethink their plan about coming clean with their polygamy.