(Original Airdate: September 21, 2009)

VOLUME FIVE: REDEMPTION MAKES A SPECIAL TWO-HOUR DEBUT WITH THE INTRODUCTION OF A MYSTERIOUS CARNIVALCLAN WHOSE INTENTIONS ARE UNKNOWN, WHILE FAMILIAR FACES ADJUST TO NEW STAGES OF THEIR LIVES THAT WILL CHALLENGE THEIR PERCEPTIONS OF THE WORLD AND THEIR ABILITIES.

Claire (Hayden Panettiere) struggles with adjusting to her new life in college when a mysterious death thrusts her into the spotlight once again. Elsewhere, Hiro (Masi Oka) and Ando (James Kyson Lee) continue their noble quest to help people by promoting their abilities. Angela (Cristine Rose) fears Nathan (Adrian Pasdar) will soon discover his true identity; while Matt (Greg Grunberg) is haunted by an unexpected visitor seeking something he has lost. Tracy Strauss (Ali Larter) and H.R.G. (Jack Coleman) join forces, looking for the key to unlock the motive behind a horrific crime. Meanwhile, Peter (Milo Ventimiglia) 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 (Robert Knepper), sets their sights on familiar faces.

Rachel Melvin, Jimmy Jean-Louis, Ashley Crow, Lisa Lackey, Assaf Cohen, and Saemi Nakamura guest star.

(Original Airdate: September 21, 2009)

VOLUME FIVE: REDEMPTION MAKES A SPECIAL TWO-HOUR DEBUT WITH THE INTRODUCTION OF A MYSTERIOUS CARNIVAL CLAN WHOSE INTENTIONS ARE UNKNOWN, WHILE FAMILIAR FACES ADJUST TO NEW STAGES OF THEIR LIVES THAT WILL CHALLENGE THEIR PERCEPTIONS OF THE WORLD AND THEIR ABILITIES.

Claire (Hayden Panettiere) struggles with adjusting to her new life in college when a mysterious death thrusts her into the spotlight once again. Elsewhere, Hiro (Masi Oka) and Ando (James Kyson Lee) continue their noble quest to help people by promoting their abilities. Angela (Cristine Rose) fears Nathan (Adrian Pasdar) will soon discover his true identity; while Matt (Greg Grunberg) is haunted by an unexpected visitor seeking something he has lost. Tracy Strauss (Ali Larter) and H.R.G. (Jack Coleman) join forces, looking for the key to unlock the motive behind a horrific crime. Meanwhile, Peter (Milo Ventimiglia) 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 (Robert Knepper), sets their sights on familiar faces.

Rachel Melvin, Jimmy Jean-Louis, Ashley Crow, Lisa Lackey, Assaf Cohen, and Saemi Nakamura guest star.

NEW MYSTERIES ARE UNEARTHED AS A RELUCTANT NEW HERO IS INTRODUCED.

Peter (Milo Ventimiglia) faces unexpected consequences for his heroic acts and encounters a reluctant new hero (guest star Deanne Bray). As Claire (Hayden Panettiere) continues to adjust to college life, she must figure out how to deal with her ability having been revealed. Meanwhile, Samuel (Robert Knepper) moves heaven and earth to recapture the memories of his late brother Joseph. Elsewhere, Matt (Greg Grunberg) struggles with his internal demons as Sylar (Zachary Quinto) mysteriously resurfaces.

Assaf Cohen and Rick Worthy guest star.

THE HEROES ARE TRYING TO ASSIMILATE BACK INTO THEIR OLD LIVES.

As Hiros (Masi Oka) life continues to hang in the balance, he distracts himself with savingthe lives of others. Meanwhile, Angela (Cristine Rose) tries to help the new Nathan (Adrian Pasdar) remember his past, at the risk of his remembering too much. Elsewhere, Tracy (Ali Larter) is determined to get her old job back, but soon realizes that she needs to make more of an impact.

Ashley Crow, Saemi Nakamura and Dawn Olivieri guest star.

SELF-DISCOVERY ROCKS THEIR WORLD AS OUR HEROES ENCOUNTER NEW ABILITIES, TRY TO RECALL PAST LIVES AND STUMBLE UPON AN UNEXPECTED KISS.

Samuel (Robert Knepper) prepares for new additions to his family, while Lydia (guest star Dawn Olivieri) warns him of the consequences. Claire (Hayden Panettiere) discovers that her roommate Gretchen (guest star Madeline Zima) may have a hidden agenda. Meanwhile, Peter (Milo Ventimiglia) finds an unexpected way to connect with Emma (guest star Deanne Bray), who would prefer to stay distant. Elsewhere, a different side of Sylar (Zachary Quinto) emerges as he desperately tries to remember the person he used to be.

Rachel Melvin and Jack Wallace guest star.

SYLAR BEGINS HIS JOURNEY TO FIND HIS IDENTITY AND PETER COMES TO THE RESCUE OF ONE OF HIS OWN.

Under Samuels (Robert Knepper) guidance, Sylar (Zachary Quinto) starts on a path to rediscover his true identity. Hiro (Masi Oka) helps Emma (guest star Deanne Bray) accept and understand the great possibilities that go along with having an ability. Meanwhile, Peter (Milo Ventimiglia) enlists HRG (Jack Coleman) to help him find a healer who can save Hiros life.

Mark L. Young guest stars.

THE HEROES ATTEMPT TO RESCUE THEMSELVES AND OTHERS WITHOUT THE USE OF THEIR POWERS.

Matt (Greg Grunberg) goes to extreme measures to extinguish Sylar (Zachary Quinto), who continues to torment him. Elsewhere, H.R.G. (Jack Coleman) calls in a favor from Tracy (Ali Larter) to save a troubled young boy whose misfortunes resemble her own. While Claire (Hayden Panettiere) and Gretchen (guest star Madeline Zima) are being hazed by their new sorority sisters, they realize pledging might not be their biggest problem.

Lisa Lackey, Tessa Thompson and Rick Worthy guest star.

HIRO GETS A SECOND CHANCE TO SAVE THE LOVE OF HIS LIFE.

When Hiro (Masi Oka) travels three years into the past, he has a second chance to save Charlie (guest star Jayma Mays) from the hands of Sylar (Zachary Quinto). However, Samuels (Robert Knepper) presence serves to complicate Hiros mission even further. Elsewhere, H.R.G.s (Jack Coleman) past with his Primatech partner (guest star Elizabeth Rohm) is revealed.

Danielle Savre, Sally Champlin, Dawn Olivieri and Jayma Mays guest star.

CLAIRE LEARNS THE TRUTH BEHIND THE ATTACKS AND SYLAR TAKES MATTERS INTO HIS OWN HANDS.

Claire (Hayden Panettiere) is determined to get to the bottom of the Sorority Rush attacks on her own, until H.R.G. (Jack Coleman) intervenes only to realize he may be the source of her troubles. Meanwhile, Peters (Milo Ventimiglia) new ability is a perfect fit for his job and gives him the opportunity to help Emma (guest star Deanne Bray) accept her new life. Elsewhere, Sylars (Zachary Quinto) battle at gaining full control over Matts (Greg Grunberg) body escalates with potentially dangerous implications at stake.

Kat Purgal, Carlease Burke, Danica Stewart, Candice Patton, Sally Champlin and Assaf Cohen guest star.

THE TRUTH SETS OUR HEROES ON NEW AND DANGEROUS PATHS.

Samuel (Robert Knepper) learns just how powerful he can become and takes dangerous measures to reach his full potential. Meanwhile, as Tracy (Ali Larter) begins to lose control of her ability, one of her own comes in harms way. Elsewhere, Sylar (Zachary Quinto) continues his battle with Matt (Greg Grunberg).

Kavi Ladnier, Jimmy Jean-Louis, Ravi Kapoor and Andrew Connolly guest star.