Claire is determined to get to the bottom of the Sorority Rush attacks on her own, until H.R.G. intervenes only to realize he may be the source of her troubles. Meanwhile, Peter's new ...

Cast: Jack Coleman, Greg Grunberg, Robert Knepper, Hayden Panettiere, Adrian Pasdar, Zachary Quinto, Milo Ventimiglia, Madeline Zima, Tessa Thompson, Jimmy Jean-Louis, Dawn Olivieri, Carlease Burke, Assaf Cohen, Deanne Bray, Sally Champlin