After a heroic rescue lands her in the hospital, Mare awakes to the unshakeable pain of losing a friend. Then, given a second chance by Chief Carter, Mare reevaluates old…

Holden’s methods during a disturbing interview with mass murderer Richard Speck create dissension among the team and kick off an internal FBI probe.

“Shadowboxing” is the eighth episode of the fourth season of the NBC science fiction drama series Heroes and sixty-seventh episode overall. The episode aired on November 9, 2009.

Danny investigates when a doorman at a nightclub is murdered; Frank makes a decision about a former partner’s future.