Something's not right in the Guadalupe Mountains National Park. Captain Kelly Bonham, a NATO electronics officer and combat zone veteran, knows there's a problem. A certain group of hikers are disappearing and then reappearing on the park's marked trails, and when she tries to follow them, poof! - they're gone. Where are they hiding, and why? At the same time, some evil person shot a mama coyote in the park, leaving Bonnie to babysit the four surviving pups with some questionable help from her retired bomb sniffer, Pojo. Bonnie's hunting for the reason behind the weirdness. But that reason is far darker and more twisted than she expects. With her life and others' on the line - Pojo, the pups, her ranger friends - how can she stop the killers?