Issues surface when Derek’s estranged sister, Amelia (Caterina Scorsone), visits unexpectedly; Meredith and Derek continue to try to ease Cristina back into surgery.

Timing is everything as a series of anomalous events lead the Fringe Division to investigate deadly incidents with unimaginable coincidences. As the freaky crimes continue to occur, the team is in a race against time to protect potential victims. Meanwhile, Secretary Bishop shares his strategic plan with Colonel Broyles as Olivia grapples with a heart-stopping vision.

Andy invites the entire office to his community theater production of Sweeney Todd in hopes that Erin will attend. Michael tries to put his jealousy aside and enjoy the performance while Jim and Pam struggle with their incompetent babysitter.

A vampire and werewolf convention becomes the center of a murder investigation.

Tyler learns more about the Lockwood family curse from Mason. Stefan and Damon argue over how to handle Mason. Elena tries to keep Jeremy from becoming more involved with the Lockwood mystery, but Jeremy makes an effort to hang out with Tyler. Mason gives Sheriff Lockwood some startling information, leading to a night of violence, confession and heartbreak.

When Booth and Brennan are called to investigate decomposed remains found at the Jersey Shore, the team IDs the victim as Richie “The V” Genaro, a 23-year-old who partied the night before at a popular nightclub. Booth and Brennan question Genaro’s peers and the club bouncer, and Brennan surprisingly proves her pop culture savvy and anthropological expertise after watching what she believes to be a documentary on the inhabitants...

Jack must appear before Congress to discuss the network’s merger with KableTown; when one congresswoman (Queen Latifah) demands more diversity in programming, Jack enlists Tracy to come up with new show ideas.

The guys are concerned as Sheldon searches for an alternative to human companionship.

When Pierce’s mother dies, the group helps to comfort him. After putting Jeff in the hospital, by one of her class pranks going awry, Professor Bauer takes a leave of absence and Professor Duncan attempts to take over her Anthropology class.

Cartman wants to race with the pros and he’s ready to do whatever it takes to make it happen. He’s afraid that no matter how hard he tries, he’ll never reach the level of the other NASCAR drivers. Working with Butters as his pit boss, Cartman pulls out all the stops to compete in the race of his life.

In this “Buster’s Cut” version of Unarmed and Unharmed, watch never before seen footage and learn insider info from the set as Adam and Jamie test quick draw gun-slinging, while Grant, Tory and Jessi board the Mythbus for a “Speed” movie myth.

Challenges facing the 11 remaining chefs include devising menus for a retro-themed high-school prom (with the losing team having to set up for the prom) and preparing entrée salads (the winner is to be featured in Bon Appetit magazine). Then, undercooking and overcooking bedevil dinner service

When several women in Herndon, Virginia, are found murdered in a similar manner, SSA David Rossi reopens an unsolved cold case that has haunted him for a quarter of a century because he believes the original killer, who is suffering from Alzheimer’s Disease, might have returned.

Grayson becomes the center of Jules’ attention as she adjusts to living by herself; Travis tries to redefine himself; Ellie wants to avoid befriending her new nanny.

When an earthquake hits, Claire gets stuck in the bathroom with the plumber; Manny experiences an existential crisis while out with Jay; Mitchell and Cameron use the quake as an excuse to get out of a party thrown by a friend (Nathan Lane).

Challenges facing the 11 remaining chefs include devising menus for a retro-themed high-school prom (with the losing team having to set up for the prom) and preparing entrée salads (the winner is to be featured in Bon Appetit magazine). Then, undercooking and overcooking bedevil dinner service.

A store clerk makes an assumption that leaves Frankie feeling humiliated; Sue falls for one of Axl’s friends; Brick tests urban legends.

A teenage girl’s death exposes a human trafficking ring and leads detectives Olivia Benson and Elliot Stabler to team up with an old friend at the U.S. Attorney’s office.

An Army reservist is accused of murdering his wife; Childs turns to dirty tricks in hopes of marring Peter’s campaign.