After so many adrenaline-soaked years risking his life, Jason Bourne is chafing under the quiet life of a linguistics professor. Aware of his frustrations, his academic mentor asks for help investigating the murder of a former student by a previously unknown Muslim extremist sect called the Black Legion. The young man died carrying information about the group's terrorist activities, including an immediate plan to attack the <st1:country-region w:st="on"><st1:place w:st="on">United States</st1:place></st1:country-region>.<BR/><BR/><BR/> In <st1:place w:st="on">Europe</st1:place>, Bourne's investigation of the Black Legion turns into one of the deadliest and most tangled operations of his double life-the pursuit of the leader of a murderous terrorist group with roots in the darkest days of World War II.