The plot of the third film in the Dark Knight Trilogy appears to be directed toward Batman’s demise. With the world that has gone to be very chaotic, someone has to sacrifice himself to save it. Audiences are led to believe that when Batman detonates the nuclear bomb, he actually sacrifices himself.
Well, Batman actually survives and lives an ordinary life with the then retired Catwoman. Batman fakes his death to obscure Batman’s persona and to give room to his successor: Robin or Nightwing.