12/15/2008 (09:00PM - 10:00PM) (Monday) : THE HEROES FIND THEMSELVES TEAMING UP AGAINST ONE ANOTHER AND THE GOOD, OR BAD, IN ALL OF THEM COMES TO THE SURFACE � ROBERT FORSTER, GEORGE TAKEI, BREA GRANT, Jessalyn Gilsig, JAMIE HECTOR AND BLAKE SHIELDS GUEST STAR - In the aftermath of the showdown against Arthur Petrelli, the Petrelli brothers (Adrian Pasdar and Milo Ventimiglia) find themselves battling against one another and Nathan makes a move that will have global repercussions. Meanwhile, Sylar (Zachary Quinto) holds Claire (Hayden Panettiere), H.R.G. (Jack Coleman), Meredith (guest star Jessalyn Gilsig) and Angela (Cristine Rose) hostage at Primatech and a face-off ensues. Elsewhere, Ando (James Kyson Lee), Matt (Greg Grunberg) and Daphne (guest star Brea Grant) continue their attempts rescue Hiro (Masi Oka) -- and Dr. Suresh (Sendhil Ramamurthy) may be their only hope. Ali Larter also stars. Ntare Mwine, David H. Lawrence XVII and Chad Faust also guest star.