It’s Beyoncé or Bust… The ladies head to Coachella Music Festival for their last hoorah before Tiffany's baby arrives. Issa has some adult fun on the Ferris wheel, Molly’s obsession with work sends her in a spiral, Kelli gets tased in the name of Beyoncé, and Tiffany worries about her place in the group after her little “weed baby” is born.