Now that Nathan’s ability has been revealed and he has lost control of his operation, he and Claire go into hiding in Mexico. With Emile Danko now in control of the government operation, his plan to destroy everyone with abilities is set into motion as he teams up with an unlikely partner. Meanwhile, Angela and Peter seek refuge in a church and begin to mend their broken relationship.

"Tabula Rasa" is the fifth episode of the fourth season of the NBC science fiction drama series Heroes and sixty-fourth episode overall. The episode aired on October 19, 2009.

"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.