A select number of unsuspecting people awake to find they have developed superpowers overnight. They become reluctant superheroes with unique powers, from regeneration to mind control, charged with saving the world. Heroes takes the comic book format and seamlessly incorporates it into a live action TV series.
Shows that I've watched from the very first pilot to the very last episode even though it did not have a proper ending because it was abruptly cancelled by the network. I really hate it when networks do that as each show deserve a proper ending. If you want to cancel a show, at least let it film 3 more episodes or something so they can add closure to the show.