Season Four

The fourth season of Heroes began airing Monday, September 21, 2009, with Volume Five: Redemption. Volume Five begins with the introduction of Samuel, a leader of a carnival consisting of evolved humans, who are tracking down future members with abilities of their own. In addition, Sylar's transformation into the deceased Nathan affects the lives of the Petrelli family, as well as those surrounding them.

Volume Five: Redemption

The fifth volume of Heroes is entitled Redemption.

Episodes

Orientation/Jump, Push, Fall Ink Acceptance Hysterical Blindness

	Chapter One, Part One -- Orientation Original Air Date: 21 September 2009 While Claire adapts to her normal life in college, Peter is using his ability to save others. Sylar, haunting Matt through visions, starts to emerge from Nathan's body, alerting Angela. A new group of evolved humans, led by Samuel Sullivan, recover from a recent loss. Tracy seeks to continue her killing spree, until Noah intervenes.
	Chapter One, Part Two -- Jump, Push, Fall Original Air Date: 21 September 2009 A dying Hiro goes back in time to fix a mistake, leading to an encounter with a future ally. Claire finds herself involved in a recent murder, while her father investigates a recent attack with the aid of Tracy. Meanwhile, Sylar continues taunting Matt, risking his ideal normal life.
	Chapter Two -- Ink Original Air Date: 28 September 2009 Peter meets Samuel under "heroic" circumstances, while a new hero is introduced. Claire makes a surprising decision regarding her secret, while Matt uses his own gift against his moral code, supported by visions of Sylar.
	Chapter Three -- Acceptance Original Air Date: 05 October 2009 Tracy makes decisions regarding her previous life, while Noah seeks a new path with Claire's aid. Nathan uncovers secrets from his past. Hiro desperately attempts to save the life of a co-worker, while Samuel looks for new family members.
	Chapter Four -- Hysterical Blindness Original Air Date: 12 October 2009 Someone plays games with Claire and she turns on Gretchen.

Characters

• Jack Coleman as Noah Bennet, a man leading a new company, to keep their existence a secret.
  
• Greg Grunberg as Matt Parkman, a detective haunted by visions of a serial killer.
  
• Robert Knepper as Samuel Sullivan, a carnival ringleader.
• Ali Larter as Tracy Strauss, a politician turned killer, who is going after those who hurt her.
  
• James Kyson Lee as Ando Masahashi, the sidekick of his best friend, Hiro, who is dying.
  
• Masi Oka as Hiro Nakamura, a time traveling man, dying due to his ability.
  
• Hayden Panettiere as Claire Bennet, an indestructible student desperate to live her normal life.
  
• Adrian Pasdar and Zachary Quinto as Sylar, a murderer whose has been tricked into thinking he is someone else.
  
• Sendhil Ramamurthy as Mohinder Suresh, a geneticist seeking redemption after manifesting a strange ability.
  
• Cristine Rose as Angela Petrelli, a mother who resurrected her murdered son in unethical ways.
• Milo Ventimiglia as Peter Petrelli, a paramedic who decides to use his powers for the greater good.