Episode 1x10 - "Six Months Ago"

THE CLOCK TURNS BACK SIX MONTHS AS "HEROES'" SECRETS ARE REVEALED -- As the clock turns back six months for all of the "HEROES", Mohinder's father Chandra Suresh (guest star Erick Avari) arrives in New York to begin his quest to find individuals with extraordinary abilities, and meets someone all to [sic] eager to be special.
Peter (Milo Ventimiglia) celebrates his graduation from nursing school, and learns that Nathan (Adrian Pasdar) plans to prosecute a case that could mean trouble for the entire Petrelli family. A surprise visit from her father brings out the worst in Niki (Ali Larter). Hiro (Masi Oka) attempts to be a hero and change the future for someone important. Claire (Hayden Panettiere) joins the cheerleading squad and makes a curious discovery. H.R.G. (guest star Jack Coleman) and the Haitian meet someone special. Noah Gray-Cabey, Tawny Cypress, Greg Grunberg and Leonard Roberts also star. Rena Sofer and Nora Zehetner guest star.