As Bill prepares for the opening of a new addition to his hardware store chain, he receives bad news about his father's health, and also deals with trying to balance the needs of his three wives.

While Bill seeks protection against the religious compound led by Roman Grant, things heat up between the sister-wives over Margene's overtly sexual behavior. Roman "The Prophet" asks Bill's father to act as a go-between to deliver a message to his son, and the Hendricksons get together for a family dinner with Bill's business partner and his three wives. Meanwhile, Margene pressures Bill about buying her a car and Ben goes out on a date with a girl that seems too mature for him.

Bill attempts to sign the deal on the video poker devices before Roman. Joey and Wanda are having a rough patch and Joey wants Barb to help them. Meanwhile, Nicki's upset with the Catholic summer school Wayne is attending. Finally, Bill is captivated by a pretty waitress.

The family dates Ana as a group. Barb awaits test results and takes steps to address Nicki's apparent infertility. With Margene by his side, Bill pursues the casino. Sarah makes plans to go to school out of state, but encounters obstacles. Don is forced into monogamy. Roman attempts to blackmail Bill into finding Rhonda. Frank introduces new wife Jodean to Lois, with explosive results.