West convinces Claire to teach head cheerleader Debbie a lesson after she deems Claire too ordinary to join the squad. While Suresh faces a serious moral dilemma with the Company, H.R.G. pays his Russian mentor a visit in an effort to locate Isaac's last prophetic paintings. Meanwhile, nearing the U.S. border, Alejandro becomes increasingly uneasy about Sylar's intentions, especially towards Maya . Peter and Caitlin's search for a mysterious doorway he painted ultimately leads them to a surprising place. In feudal Japan, while attempting to repair history, Hiro struggles with his feelings for Kensei's princess Yaeko.

When the clock turns back four months for all of the Heroes, Nathan pays a terrible cost for his heroic actions. While Peter survives his detonation over New York City, the Company bags him as a threat to the world, eventually leading to violent confrontation with Elle and the Haitian. D.L. makes the ultimate sacrifice for Niki and Micah. Maya horrifically manifests her dark powers for the first time, driving her and Alejandro to America for help. A mysterious, yet familiar face is introduced.