The United States has a military presence in two thirds of the countries around the world. A group of 12 have had enough and initiate a terror ultimatum called the Blacklist—a deadly countdown of escalating terrorist attacks on US interests. You play as Sam Fisher, the leader of the newly formed Fourth Echelon unit: a clandestine group that answers solely to the President of the United States. Sam and his team must hunt down these terrorists by any means necessary, and stop the Blacklist countdown before it reaches zero.
With a mandate directly from the president, Sam is building a whole new Echelon unit; his team, his way. Anna “Grim” Grimsdottir is his technical operations manager, CIA operative Isaac Briggs brings additional firepower, and resident hacker Charlie Cole rounds out his support crew. Fourth Echelon is a fully mobile ops unit with unlimited resources and cutting-edge technology aboard the repurposed stealth airliner, the Paladin.