After stealing the Tesseract in “Avengers: Endgame,” Loki lands before the Time Variance Authority.

This episode is the second part of a two-hour season finale. Richard tries to get information from Addison about a family member’s condition. Callie and George have a talk about…

Denny needs a heart or else. Izzie and George go crazy trying to get him one. Derek has the life of a friend in his hands as he operates on…

“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.

“Strange Attractors” is the sixth episode of the fourth season of the NBC science fiction drama series Heroes and sixty-fifth episode overall. The episode aired on October 26, 2009.

Samuel prepares for new additions to his family, while Lydia warns him of the consequences. Claire discovers that her roommate Gretchen may have a hidden agenda. Meanwhile, Peter finds an…