After Lassiter takes a page out of Shawn's book and claims a shark attack victim was actually murdered, the guys must then scramble to find the fish and prove him right.
Laurie needs a co-signer to buy her first condo and finds her less than stellar, absentee mother no help at all. Meanwhile, Bobby is mugged by a woman and Travis comes to Barb's aid after her latest cosmetic surgery procedure.
The BAU is called by local authorities in Ashburn, Virginia, to profile a predator who may have been abducting children for at least eight years.
When Mike discovers that Brick is a spelling whiz and won the school spelling bee, he puts all his efforts into training him to win the regional bee, which could ultimately lead to competing in the Scripps Spelling Bee. But as the family gets set for their road trip to Chicago for the regional bee, Frankie and Mike are horrified when they realize they forgot one thing -- Sue's birthday.
When Phil and Luke embark on a discovery expedition underneath the house, Phil tries not to let his fear of the dark and of creepy crawlies get the best of him. Meanwhile, Claire takes a nervous Haley to the DMV for her driver's test, Manny's sudden illness before a friend's amusement park birthday party makes Gloria suspicious, and Cameron and Mitchell invite Lily's pediatrician over for what turns out to be an anxiety-ridden brunch.
After recruiting Sayid to his cause, the Man in Black issues an ultimatum to the Others: either join him or die. Meanwhile, Kate is reunited with Claire. In the flash sideways, Sayid helps his brother, who is in debt to a loan shark.
Principal Simmons and Coach Daniels issue an ultimatum to the players: pass the upcoming midterms or forfeit the rest of the season.
Lydia and her new partner, Detective Rene Cordero, investigate the disappearance of an elderly man. Meanwhile, Nate and Sammy investigate a freeway shooting and inadvertently threaten the integrity of a major undercover operation. Elsewhere, Chickie finds herself in the middle of a mini-riot after her new partner panics and takes a shot at a 13-year-old boy.
Jake sets out to find the true identity of a beautiful amnesiac who stumbles across his path and ends up fighting off her two stalkers; Martin Poole refuses to leave town and wreaks havoc in Rose and Mal’s relationship; and Leslie gives Jake the cold shoulder.
The death of a lieutenant commander appears to be suicide but the NCIS team uncovers evidence corresponding to murder. Also, Operational Psychologist Nate Getz joins Special Agent Kensi Blye in the field.
Secrets arise when Gibbs former mother-in-law surfaces as a witness in a murder investigation.
While Peter gets acclimated to life at home and works on a comeback strategy with his political team, including Eli Gold, Alicia and Diane wrestle with spousal privilege laws in a murder case that hinges on their ability to get a wife to testify against her husband.
Neal helps an old friend whose daughter has been kidnapped, without realizing that it's all a trap from an old enemy.
The apocalyptic devastation unfolds in the skies. History's most important planes are grounded in a life after people. Air Force One suffers an explosive malfunction. A devastating swarm of locusts returns to the Midwest, and mysterious cargo on the Cassini Satellite could change the universe.
Harry loses his cool with 3 swimmers that he's forced to rescue just seconds after warning them not to swim in a dangerous area. However, calling them "imbeciles" and "idiots" puts him in hot water.
Jesus, Jarrett, Jeffery, Felix, John and Chris go head to head with the Silent Library. Featured Challenges: * Round 1: Too Fast Stop, Most Pressure, Shared Italian * Round 2: Private Salami, Cow Girl, Turkey Trot * Round 3: Ball Park Mix Up, Fish Row, Balled Pedal * Round 4: Stacked
Corrinda is taken in for questioning concerning Heather's death, but is released after Shaye brings forth footage of Corrinda complaining about Heather during the time of the murder. Dusty's and Larry's corpse's relationship starts to become sexual. The trial gets off to a bad start when the Judge reveals he has to use a flute as a gavel and Crim almost gets charged with Heather's murder, despite being in jail at the time. Marilyn begins her plan to bring new money to Shuckton, but is met with little success. The trial continues as planned, with Dusty being called as the first witness. He reveals that he never finished the autopsy, and so the Judge orders Larry's corpse exhumed, which causes Dusty to run off in an attempt to cover his actions.
We are introduced to the very unique Braveman family. Single mom Sarah, and her two kids Amber and Drew, are moving back home with Sarah's parents Zeek and Camille. Julia, Sarah's sister and complete opposite is a successful attorney trying to do both, work and motherhood, alongside her stay-at-home husband, Joel. Sarah's younger brother, Crosby is a commitment-phobe who must accept adult responsabilities when his old flame Jasmine shows up with a kid. Meanwhile, the older sibling of the Bravemans, Adam, his wife Kristina and their teenage daughter Haddie learn that their little boy, Max has Asperger's Syndrome. Although each sibling has its own problems, this reunion may be the push they needed to help each other with the challenges that every family faces while raising children and starting over.
Frank's romantic interest, Libby, returns and her time away has only increased her ardour. Armed with just a mobile library she is determined to bring knowledge to the people and rekindle her romance. Libby's romantic delusion is only punctured when she witnesses the 'real' Frank, leaving her Elizabeth Bennett without the Mr Darcy she craved. But overwhelmed by his desire, Frank strains every sinew to win her back using an unfamiliar weapon, honesty. Jamie focuses all his energies into giving his Madam, Michelle, whatever she wants in order to pay off Karen's debts. But his unusual behaviour rattles Karen's delicate disposition and raises Paddy's suspicions and when Michelle makes it clear she wants more than Jamie can give, the pressure mounts. Risking the fury of a woman scorned, but with everything he cares for at stake, Jamie has no choice but to find a way out.