How does Part One of Inside Out and Back Again end?

Section One ends as the Communist forces close in. Ha’s father’s best friend, Uncle Son, discusses evacuation with her mother. Only navy families are allowed to evacuate from the port, so they must be ready to leave at a moment’s notice. Ha’s family is torn over the decision to leave. Khoi is determined to stay, while Ha's mother is busy preparing brown bags for fleeing. Ha’s family pretends the distant sounds of war are the sounds of monsoons in order to keep sane.