Matt goes to extreme measures to extinguish Sylar, who continues to torment him. Elsewhere, H.R.G. calls in a favor from Tracy to save a troubled young boy whose misfortunes resemble her ...

Cast: Jack Coleman, Greg Grunberg, Ali Larter, Hayden Panettiere, Zachary Quinto, Madeline Zima, Dawn Olivieri, Raphael Sbarge, Mark L. Young, Elizabeth Lackey, Rick Worthy, Tessa Thompson, Robert Knepper, Bonnie Bentley, Kat Purgal