As the Sister Wives prepare for Kody's birthday, Christine tries to reconcile with Robyn by opening up about the problems she's had since Robyn joined the family. How will Robyn handle this brutally honest conversation?

The Browns apply for separate mortgages as they dream of getting their family into adjacent homes. Meanwhile, Janelle is still determined to open a gym, but will Kody support her plan? Later, Meri discloses the details of her past fertility problems.