Tensions run high when Shane meets Grace for the first time; The Salahuddins navigate Naeem's disapproving mother; The Davises are rocked by an unexpected development; things don't go as planned when the Merrifields travel to Mexico to meet Nathalia.

Nathalia worries Dannielle is hesitant about adding a wife; Ashley Sherwood meets with a new potential sister-wife; The Ryans nervously prepare to go on a make it or break it date; Danielle Davis decides if the polygamist life is right for her.