According to Heigl, the new episodes will explore themes of unwavering support and loyalty. “There are different friends for different phases of your life,” she explained. “But there is something about Kate and Tully that is lasting. I found so many photos of my girlfriends from high school and middle school, even elementary school, and we're still friends today. And there's something about knowing that they were there in my life and apart of some of these pivotal moments and experiences in my youth.”
She continued, “That gives a certain depth to the relationship. And that's Kate and Tully. They were there at these pivotal moments in each other's lives. Kate was there through Tully’s difficult family situation, with her mother and the drug abuse and the addiction, and Tully was there for Kate through those really awkward teenage years, where she didn't have self-confidence and she didn't feel worthy. And they pick up the pieces for each other over and over again. The energy of that just weaves into your soul. It makes it so that you can't imagine life without them.”