When struggling hardware store owner Bill Ferguson witnesses a kidnapping in progress, he reacts instinctively, breaking up the crime and saving a young girl. But the kidnapper, a sociopath known as the "I-90 Killer," escapes and vows revenge, targeting Ferguson's own daughter as his next victim. Now one terrified father must unravel a plot that may go much deeper than he realizes, racing against time to save his only child from an unthinkable fate.