In 1933 Nazi Germany, young William Blazkowicz watches as his father, a gentle chemist, is arrested by the Gestapo. Eleven years later, now a U.S. Army Ranger Captain, "BJ" is recruited for a secret mission behind enemy lines. Parachuting into Bavaria, he teams with British agent "Agent One" and the German resistance to infiltrate Castle Wolfenstein. Their objective: assassinate Adolf Hitler. Inside the castle, they discover a nightmare of Nazi science—cloned Hitlers, a zombie army, a robotic war machine called the ÜberSoldat, and a doomsday rocket aimed at London. BJ must rescue his long-lost father, stop the weapon, and survive the night.