It was the plants, punishing us for polluting the planet. There, I just saved you from the most pointless 91 minutes of your life...The trees, long suffering at the hands of humans, begin to seep toxins and obviously, a breeze...how that happens I'm not sure!!which cause a reaction in humans, it prompts a zombie like state in which the human victims seem unable to prevent themselves from killing themselves, however they do have the foresight and planning to plan out ways to kill themselves. And kill themselves they do: whether its jamming a hair pin into their throats, walking the plank on a construction sight, steering a riding lawn mower and then proceeding to lay under it, or feeding limbs to lions, the level of uncomfortable ways to die seem to be ratcheted up over and over again! There's nothing really unique in the idea of nature vs humanity, however the common sense in this film is lacking, and it is that which becomes incredibly annoying! For instance Julian (John Leguizamo) pulls a number seemingly out of his head to express the chances that Trenton, NJ, where his wife was headed, is safe from the toxins. Of course, the minute he separates from Elliot (Mark Wahlberg), we know its only a matter of time before he bites the big one! Another problem is that the film seems to turn upon itself in its own contradictions. For instance, this toxin which is theorized produced by the trees, grass and bushes creates a sudden sense of disorientation which prevents the infected from speaking or remembering what they were doing just before- however in the zombie like state, it doesn't prevent them from devising rather complex methods of ending their lives. So in essence, its not hallucinations that the toxin prompts, but rather it is mind control!

I was very disappointed in this movie. I normally love M. Night Shalamon's movies, the message they carry. I thought the acting was horrible, the story line slow, and the whole explanation for it hokey. I think he made a mistake of going for the gore and R rating.