Big Love (OV)

With the grand opening of the Blackfoot Magic Casino only days away, the Henricksons make last-minute preparations. Meanwhile, Adaleen shares a shocking secret with Nicki; and Margie makes an on-air slip-up.

Ignoring pleas from Nicki to become Juniper Creek's next prophet, Bill contemplates running for the vacant Utah State Senate seat against an ardent polygamy foe, Roy Coburn.

Bill, Nicki and Cara Lynn travel to Washington, D.C., where Bill tries to land an endorsement from Congressman Clark Paley while mending things with Nicki. Meanwhile, Margene's on-air triumph is tempered by a case of mistaken identity.

Pressed by Coburn to state his intentions, Bill gets his family to stage an elaborate rally announcing his candidacy. He isn't so lucky when an audit uncovers insurance discrepancies caused by his multiple wives.

Bill pulls out all the stops to win Paley's support for the State Senate nomination, while Nicki continues as his campaign's 'secret weapon.' Meanwhile, Margene gets the cold shoulder; and Bill absorbs a last-minute sucker punch from Coburn.

Ana resurfaces with a surprise revelation. Meanwhile, Bill tries to get Tommy and Jerry to rebrand the casino; Marilyn makes yet another impressive pitch; and, with a flourish, Bill shows his wives the family's collective future.

Bill and a vengeful Joey make an emergency trip to Mexico after Lois & Frank's latest smuggling escapade backfires; Nicki is jolted by a doctor's news; Margene offers up a novel remedy to keep Ana from leaving the country; a bomb scare rocks the casino.

Sarah makes a shocking announcement; Nicki tries a new look; Margene is put on the defensive with Bill; Barb is put in an unwanted spotlight; an exposed Marilyn looks to bring down Bill; a suspicious Bill looks for clues about J.J. in Kansas.

In the Season Four finale, Bill faces last-minute threats to his candidacy; the three wives feel the strain as Election Day arrives.