Food allergies among children have more than doubled in the past decade, and this film follows the families living with what that statistic actually means: a lunchroom, a birthday cake, a single bite of something with nuts in it. William and Johnny, two young boys who each suffered severe reactions to foods that looked ordinary, anchor the film's account of anaphylactic shock, the sudden swelling and loss of breath that can kill within minutes. Doctors and researchers explain what happens in the body during a reaction and why the numbers keep climbing, while parents describe the daily routine of reading labels, quizzing schools and other parents, and treating every unfamiliar snack as a possible threat. The film also presses on where the system fails these families, from vague ingredient labeling to gaps in emergency preparedness at schools, and asks what better research, better labeling, and better training could prevent. It is a plain, close account of a risk most people underestimate until it touches someone they know.