Sophia Alexander, the beautiful daughter of a famous surgeon in Berlin, has had to grow up faster than most young women. When her mother falls ill, Sophia must take charge of her younger sister Theresa, look after her father and the household, while also volunteering at his hospital after school. Meanwhile, Hitler's rise to power and the violence in her very own town have Sophia concerned, but only her mother is willing to share her fears openly. After tragedy strikes and her mother dies, Sophia becomes increasingly involved in the resistance.

The Lakey sisters are perfect opposites. After their mother died and their father was lost in grief, Willa had no choice but to raise her sister, Harper, and their brother, Lucas. Then, as an adult, she put her own life on hold to nurse Harper through a terrifying illness. Now that Harper is better and the sisters are living as roommates, Willa has realized her dream of running her own bakery and coffee shop, bringing her special brand of caretaking to the whole Oceanside community.

Annie Marlow has been through the worst. Rocked by tragedy, she heads to the one place that makes her happy: Oceanside in the Pacific Northwest, the destination of many family vacations when Annie was a teenager. Once there, Annie begins to restore her broken spirit, thanks, in part, to the folks she meets: a local painter, Keaton, whose large frame is equal to his big heart - and who helps Annie fix up her rental cottage by the sea; Mellie, the reclusive, prickly landlord Annie is determined to befriend; and Britt, a teenager with a terrible secret.

Stranded on the side of a country road with a broken-down car, Rorie Campbell is grateful when horse rancher Clay Franklin comes to her rescue. Stuck in the quirky small town, Rorie gets to know Clay, and she quickly starts to fall for the gruff, tough cowboy. Can a city girl make it work with a country man? Kate Logan is understandably devastated when her former fiancé marries someone else instead. At the wedding, after one glass of champagne, she spontaneously—foolishly—proposes to her longtime friend Luke Rivers. And Luke agrees.

Every Christmas, three lovable angels visit Earth. Once a year, Shirley, Goodness and Mercy are allowed to intervene (or, more accurately, interfere!) in human affairs. Despite their frequent misadventures and the chaos they often cause, things always seem to turn out right.