Anxiety reaches an all-time high as the Thores arrive in Alabama to meet Angie, Glenn's long-lost daughter; when Whitney starts a friendly competition with her niece and nephews, Glenn worries Whitney's competitive nature will be too much for them.

The house is abuzz after the family dance-off, but the competition is just beginning as Whitney refuses to lose to her new niece. Whitney's nephew introduces her to a new potential suitor. Glenn and Angie finally discuss the nature of their relationship.

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.

The Swiss family adventure continues until a terrifying turn of events leaves them stranded in the Alps, where a helicopter rescue mission may be their only hope; the shocking reveal of a new family secret sends Whitney into a spiral.