Susie Misner

While investigating a mystifying incident at Massive Dynamic, Olivia seeks to rid her consciousness of Agent Scott and Peter's past catches up with him. Also available on iTunes and VUDU

When Blair's father comes home for the holidays with an unexpected guest -- his boyfriend -- Blair finds it difficult to hide her disappointment. Also available on Amazon Instant Video, iTunes and VUDU

Serena has absolutely no intention of attending the upcoming Debutante Ball, until her grandmother, CeCe, announces that Serena must attend. Also available on Amazon Instant Video, iTunes and VUDU

When Dan finds out that Serena and her family are celebrating Thanksgiving alone, he naïvely invites them to spend the holiday with his family. Also available on Amazon Instant Video and VUDU

Blair puts on a happy face for her 17th birthday party and attempts to hide the truth from her friends. Also available on Amazon Instant Video, iTunes and VUDU

Senator Collins delivers a press conference to address the speculation swirling around his vote on Judge Wallace Rainer as justice of the Supreme Court. Also available on Xfinity

A 71-year-old man goes missing. The team searches for the man who was last seen getting into a car with two guys. Academy Award winner MARTIN LANDAU ("Mission Impossible," "Ed Wood") reprises his role of Frank Malone, Jack's father. Also available on iTunes

Ends 12/31/12. 'Time and Punishment.' Carrie and Aidan deal with new distractions; Samantha demands gender equality when it comes to below-the-belt grooming; Charlotte must choose between work and family; and Miranda is sidelined by a back injury. Also available on Amazon Instant Video, iTunes and VUDU

As the demands are met, Agents Lucas, Mei, and Tyner begin preparing for Sara's return until a tip from an informant linked to Agent Kelton alters the direction of the investigation. With rescue efforts in place, Sara makes a risky move.

When Sara is seen emotionally drained in captivity and Marcy visits a doctor, Senator Collins' stress level reaches new heights as he struggles to cope with Sara's disappearance and life without her.

As the demands are met, Agents Lucas, Mei, and Tyner begin preparing for Sara's return until a tip from an informant linked to Agent Kelton alters the direction of the investigation. With rescue efforts in place, Sara makes a risky move.

When Sara is seen emotionally drained in captivity and Marcy visits a doctor, Senator Collins' stress level reaches new heights as he struggles to cope with Sara's disappearance and life without her.