"High Castle" refers to the television series "The Man in the High Castle," based on the novel by Philip K. Dick. The show is set in an alternate history where the Axis powers won World War II, leading to a divided United States. The story explores life under totalitarian regimes, focusing on the struggles of various characters living in this dystopian world. The series features a mysterious film that depicts an alternate reality where the Allies won the war. This film becomes a symbol of hope and resistance for those seeking freedom from the oppressive rule of the Nazi and Japanese powers.