World War II is raging across Europe, and Castle Wolfenstein has been occupied by the Nazis and converted into their HQ. You have just been captured behind enemy lines, and await interrogation and torture by the dreaded SS in the dungeons of Castle Wolfenstein. A dying cellmate bequeaths you your only hope: a gun and ten bullets. Your mission is to find the war plans for Operation Rheingold and escape from Castle Wolfenstein alive.