When Christine and Barb throw New Christine a spur-of-the-moment bachelorette party in Vegas, they discover a wild side of her that is the polar opposite of her usual up-tight personality.

The auditions continue on American Idol from Louisville, KY as the judges continue their quest to find the next singing superstar.

Sarah devastated by her father's death decides that she needs to get away, only to be followed by a concerned Mike. While they are gone, the NSA shuts down the program and has KITT's main chip pulled. They decide to try again putting KITT's chip into KARR. When Mike and Sarah return, they, with the help of Zoe and Billy, are determined to fix KITT and put an end KARR.

After one contestant is taken in daylight, the others are left wondering what is in store for the future. Two contestants go head to head in a scavenger hunt.

After Allison accidentally floods the first floor of Gary's house, she allows him to temporarily move back in with her.

The BAU is called to investigate when young women are being abducted by what appears to be a family working together.

Several of the Oceanic Six survivors come to grips with their need to return to the island... on their own terms.

After a teacher is murdered, the team investigates a student who is seen fleeing the murder scene.

Adam heads back to his hometown of New York City, as he accepts a p'hall curry challenge from the Brick Lane Curry House. He can get his name on the wall at the restaurant's P'hall of Fame list, by eating down an 'excruciatingly hot' dish.

Flack's interrogation of a wrestler turns deadly.

When the son and housekeeper of a pair of prominent biologists are murdered, detectives suspect the couple's work on a controversial pharmaceutical study may have made them targets for the killer.

Hurley and Sayid are hunted down by the cops. Jack and Ben try to bring everyone together as a team. Kate recieves help from an old friend to hide the truth.

Patty begins to suspect Purcell of withholding vital information; Ellen uncovers a decades-old secret from Patty and Purcell's past.

Not enough conflict yet? Prepare to be satisfied as one of the most brutal challenges occurs. Two teams will create their vision of a perfect dining experience from start to finish, but personal issues may derail some. Stephen Starr performs guest judging duties.

The Brooklyn house heats up as the roommates begin to take their crushes to a new level.

New York Times Washington Correspondent David Sanger

Tonight Stephen welcomes poet Elizabeth Alexander.

The gang go after a judge who is yet to collect his reward, so it's down to Mickey to help convince him to get it. Elsewhere, things are not looking good for Albert.

As the one remaining link from Seasons 1 and 2, Effy now goes on to Roundview College with a new gang.
We are introduced to Cook, JJ, Freddie, Katie and Emily (the twins), Naomi and Pandora.