

The ERs and ORs of prestigious Boston hospitals attempt to save two young men after they've been gunned down in Charlestown. Elsewhere, a nursing student is involved in a car accident in which the other driver is also a nurse and an injured motorcyclist raps for the doctors and nurses.

A horrific motorcycle accident involving an off-duty firefighter is caught on camera; a teenager falls through floorboards in a church; Boston Garden EMS personnel deal with a contentious sports fan; a volleyball player with a dislocated ankle.

A teen whose hand was severed in a car accident is taken to Massachusetts General Hospital to have it reattached; a firefighter falls from the roof of a burning building; a young man takes a bullet to the chest.

A car hits a medical student who is out biking; a woman with a latex allergy has a reaction after eating food prepared by workers wearing rubber gloves; an ER doctor keeps his cool when a patient becomes aggressive.