Secret Service, (also known as Secret Service: Ultimate Sacrifice) is a first-person shooter video game, developed by Cauldron HQ and published by Activision Value for Microsoft Windows, PlayStation 2 and Xbox 360. It is set in Washington D.C. on Inauguration Day, where the player assumes the role of an elite agent named Pierce, whose task is to eliminate enemies to prevent them from attacking the capitol. The game uses the CloakNT in-game engine. The game was released in North America on and was released in Europe on .