构思源自同名纪录片，这部医务剧以全美最忙碌，名声也最不堪的洛杉矶县医院的急症室为故事背景。一群医术精湛的医生尽管受制于落后的制度，但他们仍为理想、为病人努力奋斗。

　　在路易斯安那州一场危险的飓风中，一场大胆的越狱行动被一群饥饿的大鳄鱼打断。

　　A young woman and her estranged father fight to survive after being stranded on a remote mountainside during a winter storm.

　　When a party bus on its way to Burning Man filled with a bunch of sexy young adults breaks down in the desert and in the middle of a group of Satanic worshippers, all hell literally breaks loose. A massacre leaves seven survivors trapped…