Hiro continues the pursuit of his father's killer, while Claire deals with the aftermath of her father's death. After tracking down the woman in the company photo, Peter travels to Primatech Paper in Texas with his new friend to destroy the virus, which will kill 93% of the world's population in the future -- but not everything is what it seems. Niki returns to Micah with bad news. To right a wrong, Monica puts her abilities to the test, with tragic results. Meanwhile, Dr. Suresh continues his slide towards the dark side of the company by reviving Noah Bennett, using Claire's own blood and outside of New York, Maya must finally choose between Alejandro and Sylar.