Episode 1
A teenager football player suffers a stroke in the ER. Plus, a doctor tries to solve the mysterious abdominal pains of a patient and a man is run over by his wife twice.
Episode 2
A doctor with a severe bee allergy is stung while treating a critical patient who's been stabbed in the eye; a man comes into the ER after slitting his own throat; a paramedic becomes a patient when she's struck by a mysterious illness.
Episode 3
The hospital is locked down when a nurse is shot in the ER; medics rush a bride from her wedding who is in an unexplained altered mental state; a doctor must perform a risky intervention to save the life of a teenage girl.
Episode 4
An apparent drive-by shooting victim is missing his nose; a girl deteriorates before her family's eyes from a severe case of meningitis.