Watch Untold Stories of the E.R.

A patient's pet causes pandemonium in the ER; a man experiences paralysis that climbs up his legs to his chest until he can no longer breathe; and a war veteran suffers from phantom pain in his amputated hand.

A new nurse makes a shocking mistake; a patient appears to be hallucinating and sends ER staff on a wild goose chase; doctors must determine what is wrong with their patient, a former EMT who was found lethargic and slurring his words.

A boa constrictor wraps around a man's arm and won't let go; a young woman has a severe laceration; a young man goes into anaphylactic shock after a dinner out.

An urgent care physician must quickly think outside the box to care for two emergencies at once; a woman with abdominal pains receives an unexpected diagnosis; and a yoga instructor has a dangerously high temperature for no obvious reason.

Police officers bring in a criminal that is comatose; a man found passed out in the snow with no jacket or shoes arrives in the ER; a doctor is faced with a family emergency on her day off.

A fishing lure embedded in a man's face turns out to be the least of his problems; a pair of unconscious teenagers are brought to the ER where dramatic family secrets are revealed; an ER tech collapses and then refuses traditional medical treatment

A man's itchy rash turns out to be more than just poison oak; a young woman is bleeding profusely from the inside of her lip, but there is no obvious cause; a family of three is admitted as car accident victims, but the doctor makes a shocking discovery.

Two separate car crash victims are brought to the ER in their underwear; a woman is acting delusional and refuses to allows the ER staff to touch her; and a doctor struggles to diagnose a dehydrated and nauseous 10-year-old.

A patient is brought to the ER with a live shark clamped onto his thigh, and he wants to save the shark! Complications arise for a woman with a life-threatening condition, and the mysterious condition that caused a man to pass out.