As the stifling heat of summer settles over Heather Creek Farm, bad news shakes Charlotte's world: Her dear friend's husband has a heart attack. As Charlotte comforts Hannah and helps them both through Frank's difficult recovery, she begins to reflect on her own family's well-being. What if anything ever happened to Bob? How would they all make it? Meanwhile, Emily heads off to church camp and her experiences there bring her closer to God—as well as to a new guy. With her boyfriend Troy back home, will Emily remember what loyalty is all about? Christopher is hard at work on a float for the Fourth of July parade and ropes a begrudging Bob into helping. And Sam has been spending time with his friends at a nearby lake house, where they get into some trouble that may just ruin all of their summers—and jeopardize his future. Will the long hot days of summer be a season of growth for the Stevenson family?