"How to Stop an Exploding Man" is the twenty-third and final episode of the first season of the NBC science fiction drama series Heroes. The episode was written by Tim Kring and was directed by Allan Arkush. It is the conclusion of the three-part finale for season one. The episode started filming March 26. It aired May 21, 2007. The title of this episode is in reference to a question that Hiro Nakamura asked in "Fallout".