Hiro gets back to Japan and using Issac's comic book he persuades Ando to help him save the world. They go back to the US. Nathan says officially that his brother is crazy and it upsets Pete, who is struggling to fly again. Claire gets killed and wakes up during the autopsy and Matt sees a mysterious man while helping to investigate the murders from last episode. Meanwhile, Mohinder discovers a strange apartment and Niki drives her son to his grandmother where we learn that Niki's husband is wanted for murder.