In the late 1990s, the National Security Agency (NSA) and a computer software firm, Wendell Crenshaw work together to implement a surveillance technology, the Echelon, which enables NSA to monitor almost anybody in the world. When classified information about the Echelon system accidentally finds its way into a young woman's hands, a terrible clash occurs in the opinions of a top-executive at Wendell Crenshaw and an NSA operative, the former determined to find out what the lady knows even if it means using violence and the latter, equally determined to save an innocent woman's life.