Samuel learns just how powerful he can become and takes dangerous measures to reach his full potential. Meanwhile, as Tracy begins to lose control of her ability, one of her own comes in harms way. Elsewhere, Sylar continues his battle with Matt.
Quest roles:
Jimmy Jean-Louis(Haitian), Kavi Ladnier(Mira Shenoy), Ravi Kapoor(Young Dr. Chandra Suresh), Andrew Connolly(Joseph Sullivan), Heather Ankeny(Beth), Dawn-Lyen Gardner(Elizabeth), Aleene Khoury(Student), Benjamin Fitch(Officer Ramsey), Don Tiffany(Orderly)