The premise of this queasy little tale is that climate change, aka global warming, has caused the partial thawing of a wooly mammoth up in Northern climes that is infested with an ancient parasite that emerges ready and willing to infest a New Age.  The roughly cockroach sized bugs burrow under your skin and lay eggs that basically feed on their host and then emerge ready to find a new home.  This movie is definitely not for the squeamish!  Yes.  I felt my skin crawl on more than one occasion. There are numerous grotesque set pieces throughout this flick.

All in all, an engaging horror film with a cameo from Val Kilmer as the scientist who finds the insects and reiterates the potential horrors lurking unseen that will be unleashed by climate change.  Whether that is true or not is of course speculation or inevitability depending on your point of view.