Heroes is an American Emmy Award-nominated science fiction drama television series, created by Tim Kring, which premiered on NBC on September 25, 2006. The show tells the story of several people who "thought they were like everyone else... until they realized they have incredible abilities" such as telepathy, time travel, flight and instantaneous regeneration. These people soon realize they have a role in preventing a catastrophe and saving mankind. The series emulates the writing style of American comic books with short, multi-episode story arcs that build upon a larger, more encompassing arc. Kring said "we have talked about where the show goes up to five seasons."

When the series premiered in the United States, it was the night's most-watched program among adults aged 18-49, attracting 14.3 million viewers overall and receiving the highest rating for any NBC drama premiere in five years. On October 6, 2006, NBC Entertainment President Kevin Reilly announced Heroes had been picked up for a full season, and on January 17, 2007, Reilly announced Heroes had been picked up for a second season. The second season of Heroes will consist of 24 episodes, and the first season of a new spinoff, Heroes: Origins, will include six episodes. The second season is scheduled to premiere on September 24, 2007.

The plot of Heroes is designed to be similar to the stories of comic books. Like comic books, Heroes has large overall arcs and small arcs within the main arc. No matter what characters exist and what events make up a season, all seasons of Heroes will involve ordinary people who discover their abilities and their reactions to their self-discovery.

Each episode reveals new answers and questions and progresses the story and/or the characters. There is an overall arc of the first season that revolves around stopping an explosion of immense proportions that happens in the future. That arc is initially carried by two characters, Hiro Nakamura and Isaac Mendez, the former having seen the event in the future and the latter having painted it from his visions.

The first four episodes of the first season revolved primarily around characters discovering their powers, dealing with the issues of normal life and coping with the consequences of their discovery.

At the end of the fourth episode, a smaller arc began with the message "Save the cheerleader, save the world", which is tied to the explosion already foreseen. By the end of that arc, the characters slowly discovered their abilities and the existence of others like them, and some of them even began to realize the need to come together to prevent a catastrophe.

As characters progress through the first season learning of others similar to them, the plot turns to the question of how the explosion seen in Hiro's trip to the future and Isaac's paintings will occur and what role the various characters will play to stop it or cause it.

- From Wikipedia