Picture it: you're walking through a muggy forest in Peru. You take a seat on a mossy tree stump and look up into blue sky, half hidden by thick green leaves above you. There's a sound in the braches. You're expecting a cockatoo, but you're wrong. By the time you realize what you're seeing, it's too late. You're already dead.

People are dying in the depths of the Peruvian rainforest. Marcus Tolson, entomologist extraordinaire, is called in to save the day. He travels, across the ocean from New York, with his team of experts. They're ready for anything. There's nothing they haven't seen before, and they've come fully prepared to catch and capture whatever it is that is taking innocent lives.

But when a member of Tolson's team ends up missing, the group begins to realize they're dealing with something bigger and meaner than anything they've seen before. A genetically engineered monster has escaped in the jungle, and this eight-legged killer is hungry for human blood. The lives of an entire village-and the lives of his team-are in Tolson's hands. Will his expertise be enough to get them out alive, or will a horrific beast be set loose upon the world?