Plot summary
Carrie and Brody drive to her family's remote cabin and enjoy a day of sex and romance. Aileen attempts to flee to Mexico, but Saul intercepts her and drives her back to Langley. She discloses that her task was to buy a home near the airport and await a visitor, who spent an hour on the roof. The roof is discovered to have a direct line of sight to a landing pad for Marine One, the President's helicopter, within a sniper's range. At the cabin the following morning, Carrie inadvertently indicates to Brody that she has been spying on him, prompting him to confront her.
Carrie accuses Brody of being an agent of al-Qaeda; Brody maintains his innocence, but admits that he converted to Islam, that he beat Walker to death under coercion, and that he harbored an affection for Abu Nazir during his captivity. Saul calls Carrie and reports that Aileen has identified the "visitor" at her house as Tom Walker, who is revealed to be both alive as well as the POW turned by al-Qaeda. A shocked Carrie attempts to apologize to Brody, but he rebuffs her and drives away.
Credits
Adapted from Wikipedia contributors, Homeland season 1. HTML formatting and reference markers removed.