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 Three: Villains

The fifth volume of Heroes is entitled Redemption.

Episodes

Orientation Jump, Push, Fall

	Chapter 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 Sullivan, recover from a recent loss.
	Chapter Two -- Jump, Push, Fall Original Air Date: 21 September 2009 A dying Hiro goes back in time to change 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.

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.
  
• 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 cheerleader desperate to live her normal life.
  
• Adrian Pasdar as Nathan Petrelli, a deceased politician who was mentally resurrected, taking someone else's body.
  
• Zachary Quinto as Sylar, a murderer whose body and personality was taken over by a victim.
  
• 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 man who decides to use his powers for the greater good.