In one of the most physical Reward Challenges ever played, injuries threaten to send two castaways home before the first challenge is completed.

Stefan helps Elena and Bonnie out of a dangerous situation. Jeremy asks Anna to a party in the woods, unaware that she has her own reasons for wanting to meet him there. When Stefan, Damon, and Elena work with Bonnie and Grams to open the tomb, everyone is shocked by what they discover.

Due to the aftermaths of a terrible mistake, Jeff attempts to reconcile his friendship with Britta. Shirley and Annie want to pull a prank on Señor Ben Chang.

When a tennis star loses her scholarship, Susan has Beth and Dylan work together on the pro-bono case. Meanwhile, Liam and Malcolm are forced to go head-to-head.

Leslie and Justin try to track down one of Leslie's mom's old boyfriends for Valentine's Day.

Valentine's Day hits Seattle Grace with a bang when the roof of a popular romantic restaurant collapses and the doctors have to deal with the fallout. Derek continues to struggle in his new position as his busy schedule takes its toll, while Meredith faces the pressure of being the chief's wife. Meanwhile, Mark and Callie try to convince Sloan to do the right thing for her baby.

Sabre's CEO tells Michael and Jim that one of them must take a step down and go back to sales.

Castiel helps Sam and Dean hunt down Cupid on Valentine's Day after townspeople start to kill each other for love. However, after Cupid tells them he's innocent, they discover Famine, one of the Four Horsemen of the Apocalypse, has arrived in town.

When two old acquaintances of Michael's show up, it is up to him to clean up their messes.

The guys at OCC are tapped by Kobalt to build them a custom chopper. With a brand new set of tools, Senior and his team get busy designing and building an incredibly unique chopper. Junior gathers the family together and makes a truly life changing announcement.

The team works with Corrine, a woman whose regression episodes show graphic details of a crime. Meanwhile, Kate and Prince head to Florida in order to figure out Corrine's role in the crime.

The designers must create a look to be worn by Heidi Klum on the cover of Marie Claire.

To avoid feeling lonely on Valentine's Day, Liz Lemon schedules a root canal but soon realizes she hasn't thought it through. Meanwhile, Jack Donaghy woos an attractive and successful CNBC host, Avery Jessup, and Jenna Maroney is disappointed when her creepy stalker loses interest.

Sam has Violet help plan Maya's wedding, as Naomi becomes more distant and refuses to help. Meanwhile, tensions arise between Addison and Sam as they treat a suicidal patient, and Cooper and Pete work together to treat a girl with a mysterious bite mark.

Patrick Jane insists on helping Cho with an off-the-books investigation into the murder of Cho's former gang, the Avon Park Playboys.

The Important Thing discussed in this episode is the Important Thing of Ability.

Malory chooses Lana over Archer for a mission to Saint-Tropez to take down an arms dealer, while being accompanied by Malory. Meanwhile Cyril worries about Lana's safety, and her fidelity.

After Sarah's brunch is interrupted by a children's book reading, she decides to show everyone how easy it is to make children's books and television. Meanwhile, Brain and Steven are informed that their genitals have an unpleasant odor.

Lee Daniels

Tonight Stephen welcomes the director of the Whitney Museum of American Art, David Ross. Also, Stephen talks with NBC sports broadcaster Al Michaels.

Regis and Joy Philbin, a Top Ten List presented by Benicio Del Toro

The panelists on this episode are Barry Humphries, Bill Bailey and Rich Hall.

Jimmy Carr and team captains Sean Lock and Jason Manford, together with celebrity guests Carol Vorderman, David O'Doherty, John Bishop and Peter Serafinowicz compete to see who knows the?

Liverpudlian comedian John Bishop and Hollywood actor Jeff Bridges are the pick of the guests this week, whereas Courtney Love and Westlife most certainly are not.