Claire putting her suspicion over Nathan, Hiro ailing in his health and Angela begging Parkman to help Nathan in the April 27 episode of 'Heroes'.
Three clips from the finale of "Heroes" are available. In the first one, Claire asks Nathan whether he is really himself and not Sylar, while in the second one Dr. Suresh orders Hiro not to freeze the time anymore because his human body is rejecting the power. The last and third clip is Angela telling Parkman that he must help Nathan like in her dream.
"An Invisible Thread", the last episode in the third season, will air on Monday, April 27. Nathan faces off against Sylar to keep him from meeting the President (guest star Michael Dorn). Sylar has his own plans for his new partner while Hiro learns that there are repercussions to regaining his ability. Elsewhere, Matt is forced to go to extraordinary lengths to protect his future with his family.
Writer Bryan Fuller hints a bit on the season finale, revealing to Digital Spy, "I think it's the best finale the show has had. We were sitting in the room, planning the last couple of episodes, saying we know the mistakes we've made, we don't want to make them again, so how do we tell an effective story given everything we've done in the Fugitives arc? I think we came up with a really good way to pay off the season."
He added that for the fifth volume the writers had set up a "fantastic arc" for HRG, the Petrellis, and the Bennets. "All of the main characters that are surviving the finale have great ways to propel them into new stories."