Rising seventh-grader Lucy plans on a perfect summer at the Maine lake where her family has owned a cottage for decades, but the family of a classmate she dislikes has bought a home there and her widowed father is bringing a girlfriend to visit.
Sixth-grader Meg Summers and her family move to a new state every few years as her alcoholic father tries to get a fresh start, but when Meg finally makes a real friend, they all find the strength to try to change their destiny.
In 1980, when twelve-year-old Madison, who loves to play baseball, decides to play in her town's baseball league, she never envisions the uproar it causes when she becomes the first girl to join.