As B.J. Blazkowicz, a highly decorated Army Ranger recruited into the Office of Secret Actions, you are tasked with escaping and then returning to Castle Wolfenstein in an attempt to thwart Heinrich Himmler's occult and genetic experiments. Through genetic engineering and the harnessing of occult powers, Himmler hopes to raise an unstoppable army to level the Allies once and for all. You must first escape from imprisonment in the castle to report the strange creatures and happenings in and around Wolfenstein to the OSA. Your mission takes a drastic turn as you learn the depth of Himmler's plans and what you must do to defeat the evil he has unleashed.