When an Arctic explorer is killed during a polar expedition, the mysterious circumstances of his death take Castle and Beckett from the penthouses of Park Avenue to the halls of the CIA. But Castle's delight at the case's many twists and turns soon turns to frustration as he realizes that their elusive killer might just be fooling them all.
Charles depression over his new family threatens to take over his life.
Casey's detective skills inadvertantly start a brawl between the Kappa Tau's and the Omega Chi's. Meanwhile, Rusty, Calvin, and Dale take a trip to Comic-Con as Ashleigh and Fisher resume their relationship but still have a few issues.
Hundley takes it upon himself to return the toy a baby dropped in his lobby. But when George sees Hundley racing down the street with the toy in his mouth, George thinks he wants to play, and this delays Hundley. Hundley is not happy to see the baby drive off in a bus sans toy and is even more upset when Gnocchi, who wants in on the fun, grabs the toy and disappears through Pisghetti's basement window. George and Hundley follow Gnocchi into the basement, only to have the door lock behind them. Uh-oh. George and Gnocchi can climb up and out the window, but Hundley can't. George comes to the rescue by constructing a ramp leading to the window that even the littlest Dachshund legs can climb. Now they just need to figure out where that baby went.
George opens the chicken coop at the Renkins' farm and finds - wait -- a little girl?! Mrs. Renkins introduces George to Allie, her 5-year-old granddaughter who's spending her summer in the country. Allie is thrilled to meet George and practically runs out of breath asking him a million questions. She wants to know what it's like to be a monkey, and George spends an entire day showing her, which includes climbing high in a tree to see where Jumpy squirrel lives. When George climbs down the tree though, he finds that Allie is afraid to follow him. Not that Allie minds being stuck in the tree…she speaks squirrel, you know. Still, George knows girls can't live in trees. He needs to bring out Allie's inner monkey and get her down from the tree!
Kitty, Robert and Nora struggle to accept Kitty's cancer and to come to an agreement on the best possible treatment, but as they prepare to share the news with the entire family, a surprise visitor from afar makes the burden a bit easier to bear.
Alli discovers the joys of photography.....and the consequences of taking naked pictures.
Jane loves Spinner but when the gorgeous new boy flirts, Jane keeps her distant and would never fall prey... would she?
A chance encounter reunites Gaby with her sexy ex-lover and gardener, John Rowland; Bree contemplates a weekend getaway with Karl; Lynette and Tom break the news to their kids that she's pregnant again; and Susan is convinced Angie's son is responsible for her daughter's attack.
Hank attends a university mixer and consoles his jilted assistant; Charlie celebrates his first talent signing.
An 18-year old in need of a double-lung transplant, struggles to survive as the team runs into an obstacle that may prevent her from being eligible for the procedure.
Dexter is hampered by his neighborhood's increased vigilance due to vandalism, his temporary inability to drive himself anywhere, and his admiration for the killing technique of the artful Trinity Killer.
Chevy Chase and Dan Aykroyd move to Quahog. Brian and Stewie find out about their secret agency. They are told that there are Russian Sleeper Cells all over US. They go talk to Mayor West, and find out he is one of the sleeper cells. They follow Mayor West to Russia where they disable a nuke aimed at the US.
The men and boys in Springfield become obsessed with Ultimate Punch Kick and Choke Championships, a violent sport where fighters inflict severe pain on each other. When Marge and her friends stage a protest against the sport, the show's promoter embraces the controversy and challenges Marge to a match, promising to shut down the competition if she wins. She begins to train with rhythmic gymnastics, but her family step in and get her professional martial arts help to give her a real chance at winning.
Attempting to get Cleveland Jr more friends, Cleveland invites the neighbor kid over to the house. However, when he overstays his welcome, Cleveland has a rough time trying to get him to leave.
A look at how some animals and plants go to extremes to give themselves a chance to breed.
Emma hopes to meet the mysterious, elusive Frank Churchill at a village Christmas party.
Everyone at the firm is up in arms when they anticipate Parker is going to make an announcement of the newest partner. Jane finally makes the decision to move on with her life and forget about Grayson when she learns he has been dreaming about her. Jane also gets an unexpected visit from a man from her past whose sudden appearance throws her for a loop.