When electromaster Mikoto Misaka discovers her DNA is being used to mass-produce clones for sadistic scientific experiments, she vows to save her duplicates and destroy the project. But this might be one fight she can't win alone. Action, Fantasy, Sci-Fi NUMBER of DISCS 3 | A Certain Scientific Railgun S: Season 2 | | BLU-RAY | Standard | 3 Discs | Best Buy