With the music video complete and Babs thriving at Abbotswood, Whitney, her brother and her friends can finally take a much-needed vacation to St. Lucia. Whitney reveals her newly open relationship status, and everyone wonders if Lennie will make a move.

The Thores prepare to embark on the biggest adventure of their lives: meeting their new family; with the trip looming, Glenn worries he may not finish a surprise gift for his new great-granddaughter.

Whitney throws caution to the wind and plans a party for her 39th birthday, but there are hurricanes on the horizon; before she becomes a spinster, Whitney agrees to a blind date; meeting with Jessica and Lennie, Whitney makes a shocking discovery.

Emotions run high as Whitney gets Glenn, Hunter and her new family ready for their Swiss family vacation; on Whitney's to-do list is a virtual date, finally getting her braces removed and taking Glenn to the eye doctor.

Still reeling from the fight with her dad, Whitney balances on an emotional tightrope during their family vacation, but a surprise invitation from Jaime might turn things around; Glenn makes a decision that could cause an irreparable family rift.