Seven-year-old Billy Miller starts second grade with a bump on his head and a lot of worries, but by the end of the year he has developed good relationships with his teacher, his little sister, and his parents and learned many important lessons.

Six-year-old Caroline and her older sister Martha share wash-day chores, playing in the snow, and the first day of school in their home on the Wisconsin frontier.

Twelve-year-old Mitch and his mother are spending the summer with his grandparents at Bird Lake after his parents separate, and ten-year-old Spencer and his family have returned to the lake where Spencer's little brother drowned long ago, and as the boys become friends and spend time together, each of them begins to heal.