Can two teenage girls save a town?

When Loren Cofton and Tracie Martinez visit the remote hills of northeastern Nevada on a cross-country drive celebrating their high school graduation, the fun vacation quickly morphs into a perilous adventure.

After photographing an abandoned gold mine, Loren swipes a bottle of water from an eerily robotic man stocking bottles in the only occupied store of an otherwise deserted shopping center. The water's effect on Loren leads the pair to investigate the strange little town of Corsonia—despite threats from the local sheriff. And when Loren and Tracie befriend a child named Boy 11, who tells them about his curious life and upcoming fate, the girls become even more determined to figure out what is going on.

As the relentless teens uncover a horrifying trail of evil, they put their own lives in dire jeopardy. Will the girls be able to rescue the people of Corsonia—or will Loren and Tracie become the town's next victims?