It's Thanksgiving and Blair is upset that Cyrus, her mother's new boyfriend, has decided to ruin their holiday traditions. Lily finds herself in the middle of Rufus and Jenny, who threatens to stop talking to her father if things do not go her way. Serena continues to hide her complicated past from Aaron, but Dan ends up accidently revealing parts to him. Meanwhile, Blair and Chuck come to Nate's aid when he has to confront his father; and Eric learns of a secret that Bart is keeping from his mother.

The team has to face a hostage situation at the Museum of Natural History.

A girl Wolowitz has a major crush on falls for Leonard. Sheldon tries to improve rock-paper-scissors.

Karen's forgetfulness gets her into trouble with the law; Wanda attempts to think like Hank in order to discover his e-mail password; Brent's days of free dinners at home may be coming to an end.

Sarah experiences deja vu when she has disturbing nightmares, meaning trouble for Sarah and John. Derek and Jesse look into a Skynet collaborator.

Alton explores the cultural and historical influences on the New Orleans classic, beans and rice.

It's down to the final four and time for the semi finals to begin, and they do along with a new ballroom challenge.

Robin meets back up with a group of over-indulging single party girls known as the "Woo Girls". Meanwhile, Barney receives a submission for design of the new company headquarters from Ted.

Nathan learns of his father's plans, while Flint and Knox launch attacks on Hiro, Ando, Peter, and Claire. Meanwhile, Matt tries to revive Angela, Sylar meets with Elle, and Mohinder begins testing of his newest superpower formula.

Mouth looks for big news that will shake the town up. Brooke starts having money and men problems. Dan tries to have a relationship with Haley.

Michael races against time and his ailing health to break into the Company headquarters to steal Scylla, but the break-in's success lies with Sucre. Gretchen dresses up for a meeting with the General and one final attempt to get the last card key. T-Bag must make a decision to leave his criminal ways for good.

A new girlfriend wants Charlie to sleep over. Meanwhile, Alan has trouble making a punishment stick to Jake.

A media frenzy erupts when it's leaked that 41,000 illegal immigrants, all with deportation orders, have gone missing across Canada. As Minister Fleischer takes the heat, Kessler and his ICS squad swing into action, rounding up illegals: from Colombian drug lords to South Asian cyber-sweatshop workers. When Maggie encounters two young Filipino children, victims of human trafficking, she crosses the line, and becomes personally involved.

Sam breaks the news to Owen, that Todd is not only her roommate, but also her ex-boyfriend. Owen is understanding because his ex-girlfriend, Willow, lives with him as well. Ironically, Todd and Willow know each other from high school.

The in-laws finally meet up, as Sam's parents meet Mel's folks for the first time.

Usual partners are mixed up when Carl and Denny travel to Virginia to defend an officer who is accused of murder after shooting a man on death row whose lethal injection caused him to have seizures. Meanwhile, Alan and Shirley take on an employer who allegedly fired one of his workers for voting for John McCain.

A baby is taken from her mother's arms in broad daylight, and the team must race against time to find her.

SBE offers Heidi one last chance. Meanwhile Holly finds a new place to crash.

Henry suspects his wife is a spy. Edward makes a deal which could cost him dear in exchange for information with the KGB Agent Mariam Shefer. Dr. Norah Skinner investigates Angie and in the process realizing how much Edward means to her.

Sir David Frost

Tonight Stephen welcomes the author of Outliers: The Story of Success, Malcolm Gladwell. Also, Stephen talks with the host of Meet the Press, Tom Brokaw about the important cabinet positions to be filled by Barack Obama.

Dave reluctantly bonds with Warney and discovers the beginnings of a surprising friendship. Meanwhile, Julie cramps Rachel's style when she signs up for the same yoga class.

After a nasty domestic dispute, the TR team are called to look for a man, who has hospitalised his wife after an argument. The team reveals he has a gun, as-well as his son. Lawson has the job of calling him down from a rooftop.

Neliel finishes calling out her sword, Gamuza, and transforms into a white centaur. Before finishing her opponent, she suddenly transforms back to her child form. Meanwhile, Pesche Guatiche and Dondochakka Bilstin fight Szayel, using their Bawabawa. Pesche takes out his sword, Ultima, as he lands a strike on Szayel. As the fights go on, Dondochakka takes out his club to help out. Pesche and Dondochakka use their ultimate attack, "cero sincrecito", a combination of Dondochakka and Pesche's cero. Szyael manages to render their attack ineffective, and prepares to finish them off. Meanwhile, the Exequias prepare to kill Gantenbaine and Chad, and Zommari prepares to kill Rukia. Nnoitra sends Tesla to finish off Ichigo, and he releases his zanpakuto, turning into a large minotaur. Before Tesla can do so, 11th Divison Captain Kenpachi Zaraki stops him.

Things go from bad to worse for Ric during the opening of the newly refurbished Keller Ward when the electricity goes down and a party guest needs treatment. Meanwhile, Faye extracts the truth from Joseph about his desire to have children, and Rachel starts her first day at Holby, finding new friends in Maria and Sam. Elsewhere, anaesthetist Jamie suffers an accident.

The experts discover if they were right if the people that they chose who had suffered with mental health problems.