Peter Petrelli was an advanced human from an alternate future. He attempted to prevent a terrible future, but made things more complicated before being killed by Claire Bennet, while the Haitian blocked his powers. Before he died, he left his mission to his past self, who succeeded in it.

Do Peter and Nathan Petrelli die?

Nathan is rushed to the hospital with Peter and Matt in tow and appears to have died. However, he revives seconds later next to Peter, and has an epiphany; he believes that God has given him a second chance at life.

Does Peter from Heroes die?

Peter falls onto a taxicab and is fatally injured, but he survives by remembering Claire Bennet and mimicking her powers. Peter realizes that he does not need to push people out of his mind; he just needs to remember how those people made him feel to regain use of their abilities.