There's a secret in Grandma Rose's attic -- a forgotten set of dog tags belonging to her first love. But David Hutchins was killed in action and never returned to Smitten, Vermont. How did the dog tags end up in the attic? The mystery intrigues Rose's three granddaughters -- Tess, Clare, and Zoe -- and they decide to investigate, though their mother, Anna, warns them against meddling. But as the seasons turn and the mystery unravels, the three young women and their mother encounter some intriguing mystery men of their own. Has a sixty-year-old puzzle sparked something new for this close-knit family of women?