Christine and Kody turn an anniversary trip to Galveston, Texas, into intensive couples therapy in an effort to improve their relationship. Before they leave, the Brown family meets with their lawyer to start the process of adopting Robyn's kids.

The Sister Wives decide to race in a cardboard boat regatta at an annual pirate festival in Las Vegas. Janelle's family will build one cardboard boat, and Christine and Robyn's families will build another.