When evil tech genius Christopher Pelant returns to toy with the Jeffersonian team in their newest investigation, they discover that the string of murders that have been occurring are tied to FBI agents close to Booth. Meanwhile, as the investigation unfolds, Sweets realizes that the evidence seems all too familiar to him and Brennan starts evaluating her relationship with Booth when signs begin to point to him as a potential target of Pelant's.

The gang works together to plan a legendary bachelor party for Barney.

Ethan is convinced no adult actually uses algebra, but a chance meeting with Danica McKellar helps him look at math in a different light. Amy's frantic search for her missing wedding bands leads her to Ben, who advises her to break-up with Ricky before it's too late. George and Kathleen's romantic dinner is interrupted by an uninvited guest. Meanwhile, Mrs. Stone confronts Grace about her relationship with Jack.

With Victor Ortiz & Lindsay Arnold gone from the competition, they are down to Kellie Pickler & Derek Hough, Ingo Rademacher & Kym Johnson, Zendaya Coleman & Val Chmerkovskiy, Sean Lowe & Peta Murgatroyd, Alexandra Raisman & Mark Ballas, Andy Dick & Sharna Burgess, and Jacoby Jones & Karina Smirnoff. Tonight are Latin dances. For the first time, one couple get immunity and the other couples compete in a dance-off for extra points. Musical Guest: Juanes

The "knockout rounds" begin with coaches Adam Levine, Blake Shelton, Shakira and Usher's eight strongest team members remaining from the battle rounds. In this phase of the competition the coaches pit two of their own team members against each other, but this time they find out only minutes before performing who they are up against. The artists each select their own song to perform individually, while their direct competitor watches and waits. Their coach will choose the winner and that artist will proceed to the live shows.

Detective Brodie questions Kate about her father's death. Clifford offers Gladys an unexpected opportunity. Lorna grapples with some serious decisions, and Betty demonstrates her love.

Jeff tries to prove to Audrey that Heidi, a college friend, never had feelings for him; his plan goes awry, however, when she hits on him during a visit. Meanwhile, Timmy quits when he discovers Russell has embedded a pet tracking device in him.

Roses's pregnancy nears full term, prompting Zoey and Michelle to contemplate whether they will ever want another child of their own.

Jordan calls in a favor from his mother to help out Mark, but in exchange must end things with Naomi. Annie must deal with the betrayal Liam feels from being in her book and Michaela catches Navid and Adrianna during an intimate moment.

Cathy plans Adam's sixteenth birthday party. Andrea struggles settling in with her new room-mate at fashion school. Paul brings in a new assistant.

Max and Caroline are invited to be extras on a popular TV show shooting a scene in Han's diner, but when Caroline catches the director's eye, he offers her an actual role - with strings attached.

Ryan races to stop Joe Carroll before his endgame reaches a deadly conclusion. Meanwhile, Joe leads Claire to a special location and the ultimate showdown between good and evil takes place.

Two Defiance residents die, torn apart, and Nolan soon discovers that someone is using mutant Hellbugs as murder weapons to get revenge for a past crime. Meanwhile, Irisa suffers from visions that may lead them to the killer.

A look back on the highlights, low-lights, and previously unseen footage from the season as we race toward the climactic crowning of America's Next Drag Superstar.

After learning that Joyce gave up her artistic talents when she became a mother, Molly decides that she and Mike need to pursue new hobbies before becoming parents, so they take up roller skating.

Beckett's life is on the line when she steps on a pressure sensitive bomb. While the team searches for a way to disarm the explosive, Castle distracts Beckett by arguing with her about who fell for whom first.

If Pete, Myka, Claudia, and Steve can't reverse what Artie has done, the world will be engulfed by the deadliest pandemic since the Dark Ages. But the Team is already succumbing to the disease's symptoms as they race to stop the artifact sickness - before it stops them.

Five-0 allows a talk show host and her crew to follow them for the day, but the investigation turns dangerous when they have a run-in with Wo Fat.

When the past catches up with Miles and Monroe in the form of mutual heartthrob, Emma (Annie Wersching) all hell breaks loose for them physically and emotionally. Charlie and Nora are the ones who rescue Miles this time. Meanwhile Aaron's life is turned inside out while accompanying Rachel on her tenacious trek to the mysterious Tower where she plans to restore the power.

The Bates Motel welcomes its first guest; Norman learns that popular girls come with many complications.

Daniel is stressed over recent events, and Tawney reaches out to him without saying anything to her husband about it. Meanwhile, Amantha feels the town's anger and worries that it might boil over.

Jon Hamm

Brad Garrett, Amy Schumer, Old Crow Medicine Show

Iggy & the Stooges

Nada Bakos, Ben Harper with Charlie Musselwhite

Ben Kingsley, Larry the Cable Guy, the Band Perry

Mary McCormack, Jim O'Heir

Nathan is working hard to build a solid base for Saskia & Edward in Australia and accepts a job offer despite its obvious shortfalls. Saskia is excited to be joining him, but little does Nathan know, for the first time in their married life, Saskia is keeping something from him. Meanwhile, Emma is quietly giddy at the prospect of her blossoming romance with Craig.

Elliot attempts to help Ollie, but the tension between the pair threatens their professional relationship, especially after the latter's counsellor gets involved. Ric learns that his brief spell on AAU is to be made permanent, causing him to question his commitment to the position.

Billy is fed up of being the village idiot and decides it's time to earn the respect of Mimi and his peers by applying for a security salesman job. But with no experience and qualifications it's not that easy. Things start to unravel when Billy pretends he's secured the job and sinks to new levels in his quest for respect. Esther is shocked to discover that Thalia's black eye is a result of her daughter being a bully. Determined to make Thalia show more compassion for her schoolmates and set a good example, Esther sets about apologising to various Chatsworth residents, but they are far from impressed. Meanwhile, Lillian takes pity on a neglected Stella and invites her to spend time in her house. A brothel is no place for a young child though, especially when she gives Lillian's valued workers nits.

Robin takes driver's ed, and his teacher has some tricks up his sleeve.
Raven's dad cozies up to her friends in hopes of luring her over to the dark side.