Eva, Celeste, Gina, and Steph used to think their friendship was unbreakable. After all, they've been through a lot together, including the astronomical rise of Moonlight Overthrow, the world-famous queer pop band they formed in middle school, never expecting to headline anything bigger than the county fair. But after a sudden falling-out leads to the dissolution of the teens' band, their friendship, and Eva and Celeste's starry-eyed romance, nothing is the same. Gina and Celeste step further into the spotlight, Steph disappears completely, and Eva, heartbroken, takes refuge as a songwriter and secret online fangirl ... of her own band. That is, until a storm devastates their hometown, bringing the four ex–best friends back together. As they prepare for one last show, they'll discover whether growing up always means growing apart.