Tom Clancy's Splinter Cell is a series of award-winning stealth video games developed by Ubisoft. The protagonist, Sam Fisher, is presented as a highly-trained agent of a fictional black-ops sub-division within the NSA, dubbed "Third Echelon". The player guides Fisher, who has the iconic trifocal goggles at his disposal, to overcome his adversaries in levels emphasizing light and darkness as gameplay elements.