It's a milestone birthday for the Bates matriarch and the family wants to make sure it's a birthday Kelly Jo will never forget! After months of planning, the time has finally come to honor Kelly Jo's 50th! To make sure the surprise stays in tact, Gil takes Kelly Jo on a romantic getaway to Chattanooga, TN, or so she thinks. Meanwhile, the Bates kids are scrambling behind the scenes to pull off this major clandestine event and surprise Kelly Jo with a Bates style celebration! Can they pull it off?