Charlie, a waitress in a Texan diner where Hiro stopped by, has the ability to memorize things quickly and recall them accurately. She was murdered by Sylar in the storeroom with her head split open. In an attempt to save her, Hiro once traveled back to the past but was teleported to Japan before he could warn her.

In “Once Upon A Time in Texas” which airs Monday, November 2, Hiro is dwelling on a second chance to save Charlie from the hands of Sylar. However, Samuel’s presence serves to complicate Hiro’s mission even further. Elsewhere, H.R.G.’s past with his Primatech partner (guest star Elizabeth Rohm) is revealed.

The Hiro-Charlie saga was adapted into “Heroes: Saving Charlie“, the first novel of the “Heroes” series.

The other clips give away Claire and Gretchen’s first encounter, Hiro talking to Samuel, Peter doing his job as a paramedic and a blade-welding Edgar in action. In the season opener, Claire struggles with adjusting to her new life in college when a mysterious death thrusts her into the spotlight once again. Elsewhere, Hiro and Ando continue their noble quest to help people by promoting their abilities.

Tracy Strauss and HRG join forces, looking for the key to unlock the motive behind a horrific crime. Meanwhile, Peter uses his abilities for good, but he is soon called upon to aid an old friend. While the heroes adjust to their new surroundings, a mysterious carnival clan, led by ringleader Samuel, sets their sights on familiar faces.

Additionally, there is a behind-the-scene footage which is released. Containing the stunts done in the show, the footage also brought in the cast to talk about their character’s development in the new season.

NBC Heroes Season 4 Episode 6 will be called "Tabula Rasa"