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…

JFK sends a science committee to Cape Canaveral to assess the validity of the space program. Glenn, burning from the results of the peer vote, drafts letters to politicians complaining…

On the Eve of the flight, Louise learns of Shepard’s affair in Tijuana. Trudy watches Gordo crack a joke about women astronauts on television. Glenn awaits the humiliating moment when…

After Shepard’s dramatic voyage to space, he feels underwhelmed and restless. Heeding Glenn’s advice, Shepard attempts to quell his ambition with gratitude for his wife and children. While Shepard’s marriage…

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

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

“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.