A circus sword-swallower suffers from a persistent case of hiccups; a mother and daughter mysteriously collapse in the ER, for completely different reasons; a woman loses control of her legs at her daughter's graduation.
A young girl is mysteriously paralyzed from the waist down; a young man complains of a splitting headache, but his motives seem suspicious; a bride-to-be has appendicitis on her wedding day.
A young pregnant woman in labor begs the ER doctor to keep her pregnancy and delivery a secret from her father; twins share similar, confusing symptoms; a man with no pulse or blood pressure is still alive and breathing, mystifying his doctors.
A patient suddenly starts seizing, and his doctors can't treat him until they figure out the cause; an ER physician is at a restaurant when she is thrown into an emergency situation to save a child; a pregnant woman's heart is racing
Doctors use a robot to treat a seizing 7-year-old boy; a chef's tongue is swelling and it's only a matter of minutes before she won't be able to breathe; a woman who crashed her car insists her injured dog be treated first.