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Nathan learns of his father's plans, while Flint and Knox launch attacks on Hiro, Ando, Peter, and Claire. Meanwhile, Matt tries to revive Angela, Sylar meets with Elle, and Mohinder begins testing of his newest superpower formula.
First Air Date : Sep 25, 2006
Last Air date : Feb 08, 2010
Episode : 78 Episode
Season : 4 Season
Runtime: 43:14 minutes
Studio: NBC
Country: United States of America