With the “Nightmare Man” coming for him, Bob tells Parkman that he is the only one who can stop the enemy. In the near future, Peter and Caitlin discover that a virus has wiped out most of the world’s population. West discovers that Claire’s father is the one who abducted him, and Hiro has one final chance to set history right after his own hero betrays him.
U.S. air dates are in MM.DD.YY form. U.K. air dates are in DD.MM.YY form.