"Hayley Swift, a country music diva who has slipped out of the limelight, gets more attention when she's mistaken for Taylor Swift's mom than for her former glory days. When she's invited to perform at her 35th high school reunion, a bus accident puts her back-up singers in a hospital, Hayley begs her long-gone-domestic quartet from high school to join her onstage for the gig. They're such a hit that she invites the women to fill in on a low-budget...