Death rules recap:
-If you take more hit points than you have, you're considered to be at 0 h.p. and are unconscious unless you were hurt by something that would obviously kill you instantly (falling boulder, death spell, etc.).
-At 0 h.p. you're unconscious but will pop right back up if healed. However, if you go unhealed for an hour, you must roll under your constitution or lose d6 more hit points. At negative your constitution, you're dead.
-Unconscious characters can usually be killed at will by any old schmuck who has a free round on his hands and has no interest in ransoming, interrogating, prisoner-trading, or eating the PCs fresh.
Nobody's quite dead by the end of the video, but half the party's unconscious. And they are surrounded.[footnote]http://dndwithpornstars.blogspot.com/2010/06/rules-about-dying.html[/footnote]