Overview: Valentine's Day 2018. A gunman commits a massacre at his former high school in a Miami suburb. An influential youth movement emerged from the sadness and anger about this 'Parkland shooting', which claimed the lives of seventeen people: March For Our Lives. 25-year-old Maxwell Frost, one of the faces of the movement, becomes the first Gen Zer to be elected to the US Congress, where he continues his fight for stricter gun laws. Fathers Ryan and Manuel both lost a child in the shooting, but they radically disagree on its lessons.