"The Sunshine Girls" follows the unlikely friendship between BettyKay and Kitty, two nursing students in 1967 Iowa, and their decades-long journey through love, loss, and ambition. BettyKay, a small-town girl with a desire for independence, and Kitty, a cosmopolitan woman hiding a secret, forge a bond on campus before tragedy separates them. Their story spans from nursing school, to Vietnam, to Hollywood, and back, with the ultimate test of their relationship arriving fifty years later when Kitty unexpectedly appears at BettyKay's funeral.