However, she is recruited for an operation in Beirut by mentor Saul Berenson, resulting in their securing of conclusive proof that Nicholas Brody has been turned by al-Qaeda and is working against the United States.

[15][17] Actor Rupert Friend joined the cast playing Peter Quinn, a CIA analyst; he was originally reported to be a series regular, but he is credited as a guest star.

[23] Dorothy Rabinowitz of The Wall Street Journal observed that the show is more relevant than ever given recent world events, and proclaimed that "Television's best drama series is, in short, back with all that was delectable about season one on vivid display again—first-class writing, sterling performances, rocketing suspense".

[24] David Wiegand of the San Francisco Chronicle felt that Season 2 delivered on extremely high expectations and maintained the show's level of writing, acting, and tension.

[26] USA Today's Robert Bianco gave the season a 4/4 score, calling it "unmissable TV", and said that even with the expertly crafted plot, Homeland's biggest strength is in its characters.

[27] Brian Lowry of Variety wrote a positive review, noting that there are some plot points that strain plausibility, but that "once the narrative begins hitting its stride in the second episode, it's clear the program remains on a rarefied creative tier".