Doctors are puzzled as they examine little Ricky, a frequent patient of the E.R. with persistent vomiting and an odd rash around his mouth and chest. There's no explanation for why the young child wheezes, but his every breath is a painful struggle.
When Aaron's panic-stricken parents bring their son into the E.R. with seizures, doctors discover a strange mass inside the boy's brain. Fearful it's cancer, they prepare Aaron for a biopsy until a sharp-eyed radiologist identifies it as a pork tapeworm.