The eclipse continues to impact the Heroes' abilities as Elle and Sylar face off against a vengeful H.R.G. while Claire struggles to survive. In Haiti, Peter and Nathan join forces with the Haitian to battle the Haitian's brother, Baron Samedi, and Nathan comes to a shocking decision. In the meantime, Ando, Sam and Frack work hard to get Hiro's memory back with the help of the "9th Wonders" comic books at a local comic bookstore.

In the aftermath of the showdown against Arthur Petrelli, the Petrelli brothers find themselves battling against one another and Nathan makes a move that will have global repercussions. Meanwhile, Sylar holds Claire, H.R.G., Meredith and Angela hostage at Primatech and a face-off ensues. Elsewhere, Ando, Matt and Daphne continue their attempts rescue Hiro -- and Dr. Suresh may be their only hope.