
As Hiro’s life continues to hang in the balance, he distracts himself with saving the lives of others. Meanwhile, Angela tries to help the new “Nathan” remember his past, at the risk of his remembering too much. Elsewhere, Tracy is determined to get her old job back, but soon realizes that she needs to make more of an impact.
Peter deals with repercussions from his heroic acts and meets a new woman with abilities (Deanne Bray); Claire deals with the unveiling of her secret; Samuel goes to great lengths to retrieve memories of his brother; and Matt battles inner demons as Sylar reappears.
Elsewhere, Angela worries Nathan will discover his real identity; Matt has a surprise visitor; Tracy and Noah team up to investigate a crime; and a friend asks Peter for help.
Claire garners attention at college following an odd death in the fourth-season premiere.