When the world is under attack from terrifying creatures who hunt their human prey by sound, 16-year old Ally Andrews (Kiernan Shipka), who lost her hearing at 13, and her family seek refuge in a remote haven.
Four misfit campers must band together and conquer their fears in order to save the world during an alien invasion.
In 2035, aliens have wiped out mega cities around the globe to get their main source of energy, Xianteng. Will Shanghai be able to defend itself and maybe even launch a counterattack?