In the climactic season finale, everyone bands together in an effort to stop Samuel (Robert Knepper) from taking the lives of thousands. Peter (Milo Ventimiglia) joins forces with his most unexpected ally to save Emma (guest star Deanne Bray). Meanwhile, H.R.G.'s (Jack Coleman) life hangs in the balance as he and Claire (Hayden Panettiere) find themselves trapped underground with oxygen quickly running out. Elsewhere, Hiro (Masi Oka) starts to come to grips with the decisions he has made and is called into action to help stop a disaster. Greg Grunberg, Ali Larter, Zachary Quinto and James Kyson Lee also star. David H. Lawrence XVII, Harry Perry, Todd Stashwick also guest star. watch
In the climactic season finale, everyone bands together in an effort to stop Samuel (Robert Knepper) from taking the lives of thousands. Peter (Milo Ventimiglia) joins forces with his most unexpected ally to save Emma (guest star Deanne Bray). Meanwhile, H.R.G.'s (Jack Coleman) life hangs in the balance as he and Claire (Hayden Panettiere) find themselves trapped underground with oxygen quickly running out. Elsewhere, Hiro (Masi Oka) starts to come to grips with the decisions he has made and is called into action to help stop a disaster. Greg Grunberg, Ali Larter, Zachary Quinto and James Kyson Lee also star. David H. Lawrence XVII, Harry Perry, Todd Stashwick also guest star. watch
If Heroes' previous season finales have taught viewers anything, it's that they can expect to see most of the superpowered good guys come together to bring down the villain.
Heroes: Will Lydia's death spell disaster for Samuel?
Robert Knepper, who plays this season's power-hungry, carnival-leading baddie, Samuel, promises more of the same in Monday's Season 4 send-off. But for Samuel, it's no more Mr. Nice Guy.
"Samuel never went up to Hiro [Masi Oka] and Peter [Milo Ventimiglia] and said, 'You're going to work for me.' He made them realize something about themselves that they needed to realize and hopefully they would thank Samuel," Knepper tells TVGuide.com. "There was this manipulative approach that didn't work out how he wanted it to work out. In the end, he's going to say ' ... I'm going to get you back. I'm going to show you my true colors — you're now working for me.' And if they don't, there's going to be a price to pay."
Claire Bennett (Hayden Panettiere) and her father (Jack Coleman) have already gotten a taste of what Samuel's willing to do ...read more
