Molly Brown's Junior Days follows the continuing adventures of Molly Brown, a young girl from rural Kentucky, as she navigates the challenges and rewards of life at Wellington College, an elite boarding school for girls in the early 1900s. Through her experiences with friends, teachers, and the school's strict rules and customs, Molly learns about herself, her place in the world, and the importance of embracing her own unique qualities. Along the way, she faces the challenges of making new friends, adjusting to a different culture, and finding her own voice. Despite the challenges, Molly perseveres, developing into a confident and independent young woman.