The year is 1901, and the hustle and bustle of the holidays is descending on New York's Fifth Avenue. For the first time in her privileged life, Adelaide Forsythe couldn’t be happier about the prospect of a quiet Christmas. That’s not to say her transition from Missto Mrs. has been without challenge. Though she doesn’t regret marrying for love instead of wealth, she feels woefully unprepared to run her own household. Then, on the first Sunday of Advent, winter winds bring surprising change, first through a young orphan boy and then a seasoned housekeeper who seems too good to be true.

In 1931, the creation of the new Great Smoky Mountains National Park threatens Rosie McCauley’s home. Rosie vows the only way the commission will get her land is if they haul her off in a pine box. When a compromise offers her and her disabled sister the opportunity to stay for Rosie’s lifetime, her acceptance sets her apart from the other mountain folk. And the bond she’s forming with ornithologist and outsider Benton Fuller only broadens the rift. Eighty-five years later, Kieran heads back to the national park to find answers to her great-grandmother’s mysterious death.

1969. When Mattie Taylor’s twin brother was killed in Vietnam, she lost her best friend and the only person who really understood her. Now, news that her mother is dying sends Mattie back home, despite blaming her father for Mark’s death. Mama’s last wish is that Mattie would read some old letters stored in a trunk, from people Mattie doesn’t even know. Mama insists they hold the answers Mattie is looking for.

It’s 1927, and the National Park Service is in its youth when Margie, an avid naturalist, lands a coveted position alongside the park rangers living and working in the unrivaled splendor of Mount Rainier’s long shadow. But Chief Ranger Ford Brayden is still haunted by his father’s death on the mountain, and the ranger takes his work managing the park and its crowd of visitors seriously. The job of watching over an idealistic senator’s daughter with few practical survival skills seems a waste of resources.

When country music star Oaken Fox joins survivalist Mike Grizz's new adventure show in the Alaskan wilderness, he just wants to boost his fan base. But when tragedy strikes, and Air One Rescue must save them, Oaken just wants to quit. Too bad his producer has other plans: signing him on with Air One Rescue as a recruit and making a reality show...