3x12 Our Father

To stop Arthur once and for all, Hiro and Claire travel back 16 years in time to when Hiro's father, Kaito ([Πρέπει να είστε εγγεγραμμένοι και συνδεδεμένοι για να δείτε αυτόν το σύνδεσμο.]), handed baby Claire to Noah, while Peter teams up with the Haitian to finally stop Arthur, only to be intercepted by Sylar. In the meantime, Mohinder has a major breakthrough in the formula after Arthur obtains the catalyst that will change everything and the catalyst is lost forever.