Episode 1
A mountain lion attacks a young woman.
Episode 2
A jewelry shop owner undergoes open-heart surgery after being shot during a robbery.
Episode 3
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.
Episode 4
An 11-year-old girl has streptococcal pneumonia, which has a high fatality rate.
Episode 5
A tornado slams a fence picket into a woman's head.
Episode 6
A 7-year-old boy undergoes surgery to reattach his left arm after it was severed in a truck accident.
Episode 7
A teenager rushes to the ER after a football game.
Episode 8
A skier hits a tree at 50 mph.
Episode 9
An automobile accident critically injures a driver.
Episode 10
A stack of drywall collapses on a young boy.
Episode 11
A crazed gunman storms a large metropolitan hospital and opens fire in the ER.
Episode 12
A car accident ejects a young boy from a vehicle.
Episode 13
A team of doctors tries to save a patrol officer's life.
Episode 14
A rattlesnake bites the 2-year-old son of a snakebite expert.
Episode 15
A ruptured brain-aneurysm threatens the life of the ER's medical director.
Episode 16
A surgical resident puts her training to the test when a mugging survivor arrives with two bullet wounds.
Episode 17
A seemingly healthy baby suddenly develops an oxygen deficiency.
Episode 18
A construction worker's skull has a 4-pound hook embedded in it and a trauma surgeon struggles to extract it without killing him.
