Emergency medics respond to a man hit by a bus with multiple life-threatening injuries; a tree trimmer falls 30 feet off a ladder and could have significant internal injuries; a rider gets thrown from his horse and becomes unable to move.

A woman needs urgent brain surgery after being hit by a car; a man is crushed by a forklift and could have significant internal injuries; surgeons operate on a patient with multiple face and skull fractures after a car crash.

A mother of three fights for her life after being stabbed; a bicyclist suffers horrific injuries after being run over by a bus; a man collapses at work with a suspected cardiac arrest.