The documentary series shows how the iconic trio takes charge of their reunion. How do they compile the setlist from an endless stream of smash hits? How much blood, sweat, and tears does it take to rehearse their signature dance moves? What does it feel like to sing together again for the first time in almost 20 years? And which outfits do Karen, Kristel, and Kathleen want to rock on stage? Fans will follow Karen, Kristel, and Kathleen closely as they meticulously prepare their massive party and gear up for a marathon of already legendary shows.