Cal Piker hasn't seen his sister Samantha since their mother's funeral. So she's more than a little surprised when he interrupts her English lecture one morning with a bag of tacos and a proposal: a week out in the woods of Oregon, a week of looking for Bigfoot. And he already bought her ticket with her credit card. So Samantha reluctantly joins Cal on an adventure he won't fully explain, headed to Ape Canyon for no other reason than that "that's where they are". But it's a dangerous thing to be led around by Cal, the irresponsible, frustratingly likable kid brother, the one running always so hard and so far in the wrong direction. For Cal's part, he's enthusiastic to the point of irrationality to make his way to Ape Canyon and find Bigfoot for himself. He joins with a small group of adventurers and their guide from the Bigfoot Investigation Organization, and whatever obstacles they face--beginning, disconcertingly, with the guide absconding with money and valuables and leaving the group in the woods to die--he will not be turned away. For whatever reason, for Cal, this is not a matter of legend. This is not just some adventure. If Samantha doesn't stop him, Cal will either find Bigfoot or die trying.