“Duel”-
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.
“Our Father”-
To stop Arthur once and for all, Hiro and Claire travel back 16 years in time to when Hiro’s father, Kaito, handed baby Claire to Noah, while Peter teams up with the Haitian, only to be intercepted by Sylar. In the meantime, Mohinder has a major breakthrough in the formula that will change everything.
“The Eclipse : Part 2″-
The eclipse continues to create chaos. Sylar and Elle face HRG’s wrath. Peter, Nathan and the Haitian go up against Baron Samedi. Ando and Frack try to help Hiro with his memory loss.
“The Eclipse : Part 1″-
The dark eclipse plays havoc with the heroes’ powers. Arthur orders Elle and Sylar to bring in Claire. Hiro, Ando, and Matt follow Daphne to her hometown to learn what hold Arthur has on her, and Peter and Nathan travel to the Haitian’s hometown to recruit him for the war with Pinehearst.