Season Three

Season three will begin with the third volume, "Villains", on September 15, 2008 with a three-hour premiere. The first-hour will be a clip show of the past two seasons, with the final two-hours being the Heroes season premiere[26]. "Villains" was originally supposed to be part of the second season, however the writer's strike caused the volume to be carried over to season three. The lead-in to the third volume, "Villains", features Sylar. Throughout Volume Two, his powers are suppressed by the Shanti virus.[27] After using a cure procured by Mohinder Suresh, he regains his abilities, delivering the first line of the volume: "I'm back." Tim Kring has claimed that the new volume will bring a cadre of villains to the show, hence the name.[28] On December 5, 2007 at the Jules Verne Film Festival Adventure, Tim Kring showed a video-preview of Volume three.[29].

http://en.wikipedia.org/wiki/Heroes_%28TV_series%29