Teleste and Eleanor teenage sisters go through horror moments in 1999 when Columbine High School teaches the two is being stormed by a few students armed with firearms and killing 12 young people and a teacher. The two girls survived the massacre and became true national stars after they played a song inspired by the experience. The film features Celeste’s ascension that attracts the attention of a passionate manager and helps her win international fame. In 2017, now at the age of 31, she is the teen’s mother and is preparing for a massive concert.