"After being hacked down and shipped to homes, they are subject to "humiliation" by humans, who decorated them and make them stand in their living rooms. The Christmas trees have had enough, and go on to massacre and kill an entire town as part of their uprising."
ALL OF MINE ARE FAKE! ALL OF MINE ARE OBVIOUSLY FAKE! I'M JUST SAYING! LEAVE ME ALONE!
Warning: serious gore factor and trauma if you cut down live trees in this one.