Nathan and Peter face off, and Nathan makes a move with far reaching consequences. Sylar takes desperate measures at Primatech and the fates of several heroes hang in the balance. Ando, Matt, and Daphne continue their quest to save Hiro.
Hiro and Claire unite in their bid to stop Arthur by traveling back in time. Peter and the Haitian must face Sylar in order to get to Arthur. Ando, Daphne and Matt search for the last 9th Wonders! story.
The eclipse continues to create chaos. Sylar and Elle face HRG’s wrath. Peter, Nathan and the Haitian go up against Baron Samedi. Ando, Sam, and Frack try to help Hiro with his memory loss.
The team takes on the case of a fitness guru on an all-natural diet who collapsed while filming a video. Meanwhile, Foreman conducts Huntington’s Disease drug trials and Thirteen signs on as a subject, Cuddy is forced to move into House’s office, and Kutner uses House’s name to run an online medical-advice website.
