As preparations continue for Meredith and Derek's wedding, several residents must face the arrival of their parents at the hospital: Izzie's mother Robbie causes a stir when she pays a surprise visit, and Thatcher returns to make amends with Meredith and Lexie. The Chief clashes with Meredith over a controversial medical case.

News show "Inside Probe" investigates the disappearance of the Crab Shack owner. After eight years the show airs on TV, and several Camden residents become murder suspects.

Clark discovers the truth behind Davis' supposed death and angrily confronts Chloe when he realizes that she has been protecting him... but it may already be too late, as Davis ambushes Jimmy and Oliver at the Talon.

The Suarez family meet Calvin Hartley, the billionaire father of Matt's. Betty aims to get personal with Matt while Daniel tries to save Mode.

A casual get-together presents Leslie with a difficult ethical choice, helping her to create a tempest in a teapot.

Booth and Brennan investigate the case of a fraternity brother named "Beaver," whose body was found inside a rival school's mascot uniform. Meanwhile, Booth helps his brother Jared look for a new job.

A series of indeterminate deaths test the deductive powers of the CSI team, who fear that a public health emergency may be in the offing. Meanwhile, a friendly rivalry over who will win an upcoming bikini contest takes a deadly turn...

Workers take the term "casual Friday" a bit too literally. Problems escalate between the sales team, so Michael has to intervene.

Dean gets a message to meet with Castiel on important business, but he and Sam discover that Castiel has been recalled to Heaven and his human host body, Jimmy Novaks, has no memory of what happened or what Castiel knew. Unfortunately, the demon forces don't know that, and wouldn't care if they did, and will go to any lengths to get Jimmy for themselves.

With her heart on her sleeve, one castaway takes an honest approach to the game but lands herself in hot water with everyone.

The remaining three chefs will be cooking up a meal for the 100 top chefs in L.A. The winner will make an appearance on FOX's local morning show, while the losers must clean and iron the Hell's Kitchen's linens and watch the winner on TV. At dinner service, each of the three must "run the pass", a test which only two can pass.

Violet comes to the point of having to choose between Pete and Sheldon. Dell gets concerned for his daughter when Heather comes back into town all drugged up. Meanwhile, Naomi must decide if it's in her best interest to stay in the practice at Oceanside Wellness.

Senior takes a trip up to Alaska to research a bike and ends up meeting with Governor Sarah Palin. Then it's off to Finland in an attempt to bring OCC to Europe.

Tracy and Liz each agree to give up some office perks. Colleen visits Jack and shares memories of when his father left them. Jenna takes on a gibbon as a pet.

Henry and the groomsmen go fishing and discover something shocking while Trish and her bridesmaids hang out with a psychic.

Detectives Bryant and Moretta are summoned to an alley in Los Angeles where the body of an unidentified female is being used by gang members for target practice. Meanwhile, Lydia offends Det. Clarke when she tells him he was too personal when interviewing the sister of a victim.

Guests: Actor Hugh Jackman comes by on the show to talk about his new movie, X-Men Origins: Wolverine.

Tonight Stephen welcomes the founder and executive director of the Drug Policy Alliance, Ethan Nadlemann.

Two seafood dishes in two hours is the elimination challenge

The popular news quiz returns, with team captains Paul Merton and Ian Hislop, guest host Damian Lewis, and guest panellists Janet Street-Porter and Chris Addison.