Change is inevitable. It's heading for Earth at twelve thousand miles per hour...and it will land virtually undetected. For Jack McAllister, a young writer who has finally launched a career for himself, it begins tragically: his estranged father, a former NASA engineer, dies suddenly at his home in Merriweather, Indiana, leaving Jack's Alzheimer's-stricken mother a widow. But in the wake of personal heartbreak, he's confronted by an even more astonishing event--the covert landing of an alien machine in the forest just a few miles outside of town. Now Jack must unmask the true purpose of the otherworldly device that has begun a detailed environmental survey of the woods. Aided by the town's young and resilient female deputy sheriff, he soon discovers that the alien scout is only one small part of a much larger operation, and the countdown to a terrifying global catastrophe is about to take place. Drawing deeply from his father's scientific influence, all while attempting to avoid the snares of a sexy, seductive and scheming local TV reporter, Jack uncovers-and ultimately finds himself an unwilling component of-an alien plan set to terminate life on Earth as we know it.