Untold Stories of the ER

A mountain-lion-attack victim arrives with some of the worst injuries the doctors have ever seen.

A robbery victim's gunshot wound is more serious than originally thought.

Dr. Keller thinks a boy struck by a baseball bat has a concussion, but a CT scan reveals massive brain bleeding, and he suffers kidney failure.

Doctors try an untested treatment to save an 11-year-old with strep pneumonia, a disease that kills nearly all its victims.

A tornado slams a fence picket into a woman's head.

A 7-year-old boy undergoes surgery to reattach his left arm after it was severed in a truck accident.

A teen injured in a football game needs emergency surgery to repair his liver.

A skier hits a tree and has another problem in addition to his injuries: his blood will not clot. His situation worsens when the power goes out at the hospital.

An accident victim's arm is severed, but doctors are more alarmed by the damage to his liver and spleen.

Doctors work on a young boy who was crushed under a large stack of drywall. The blood supply to his vital organs was cut off, and there is a good possibility for multiple organ failures.

A gunman opens fire in a large metropolitan hospital's emergency room and takes hostages.

A boy is seriously injured in an accident after being ejected from the car because his seat belt did not fit.

A construction worker's skull has a 4-pound hook embedded in it and a trauma surgeon struggles to extract it without killing him.

A policeman is seriously injured in a roadside accident and doctors battle to save his damaged legs.

A snakebite expert must treat his own 2-year old son, who was bitten by a rattlesnake.

The ER's medical director has a ruptured brain aneurysm, forcing a doctor into the stressful position of operating on a colleague.

A mugging victim with two bullet wounds to the head slips into a coma and needs an emergency craniotomy.

A baby suddenly develops an oxygen deficiency and the infant's blood turns brown, so doctors race to pinpoint the cause.