Ashley and Dimitri Snowden are ready to take on a new wife, and when they meet Joselyn things seem promising at first; the Alldredges court a potential sister wife named Melina, and Jeff's first wife, Vanessa, faces challenges with her pregnancy.

Vanessa experiences life as a Snowden; the McGees tell their sons they want to seek a sister wife; the Winders go out in public as a trio for the first time; the Alldredges wonder if their potential sister wife, Jennifer, will show up on their date.