The Thore family grieves a devastating loss with the passing of Babs. Desperate to help her father find joy in life again, Whitney creates a bucket list for him, but a secret from Glenn's past could be the key to binding the family back together.

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. Then, the shocking reveal of a new family secret sends Whitney into a spiral.