Oliver continues his battle with Cayden James. Dinah and Oliver have a major disagreement that endangers the life of one of their own.
Jack Griffin is a Harvard philosophy scholar who loses out on his dream job and goes to work as a high school Advanced Placement biology teacher in his hometown of Toledo, Ohio. He quickly makes it clear he will not be teaching any biology, however, and, realizing he has a room full of overachieving honor roll students at his disposal, decides instead to use the kids to enact revenge on his rival and take the job that is rightfully his.
The remaining 10 bakers attempt to put their own twist on biscotti for their signature bakes. They also make jam drops and a biscuit jigsaw puzzle to impress the judges.
K.C. and Marisa take Amy on a trip to New York so she won't be at home to witness her "parents" being arrested by the Organization.
K.C. decides to save Ernie since it was her fault the barbecue failed. They learn the Bishops have planted listening devices and someone called the "The Mask" wants the weapons sold.
A con artist Nev and Max know well is now asking for their help after finding love on the internet.
All seems well for Mary, Ben has forgiven her, and she and Des have decided to move forward with the death retreat. The only nagging concern for Mary: her daughter Jess hates her and doesn't believe a word out of her mouth.
The crew races to an emergency when disaster strikes at an Indian wedding. Abby enlists the help of Buck to try and find her mother and, for the first time, meets Athena face-to-face. Meanwhile, Bobby has a difficult time confronting his past and Hen struggles to make the right decision.
As Liz works with Red to hunt for Tom's killers, she begins to question his motives. The Task Force enlists the help of one arsonist to catch another.
When a gang from El Salvador infiltrates Chicago, Intelligence works with a visiting detective to put an end to the crew's brutal tactics. Meanwhile, Antonio finds himself getting close to Salvadoran Detective Marcella Gomez and Voight learns that the body of his son's killer has been found.
As Eliot is hunted, Quentin and Julia discover a powerful secret tied to the history of Brakebills.
The BAU is called when the New Orleans P.D. discovers a mass grave inside a vandalized above-ground crypt in a local cemetery.
Hampton DeVille partners with a street artist who vandalized the company's headquarters to sell anti-corporate merch and profit off its protesters.
Samantha Bee covers everything the President forgot to mention in his State of the Union address.
The MythBusters investigate if it's possible to blow a safe open and not destroy the loot inside, and whether dog owners really look like their pets.
As Monkey travels further into his past Tripitaka must act quickly before he is lost forever. Using the sutra, she is able to find a way to go after Monkey, and in doing so unravels the mystery of his imprisonment.
Empty nesters that sold their home the first day it was on the market want to find a deluxe retreat where they can hang with their grandsons in style. Drew lines up family-friendly properites, and Jonathan has big plans to inject French country charm into a dated fixer-upper.
Josh travels through the jungles of Ecuador to explore the watery depths of Tayos Cave for a legendary set of metal plates believed to be created by an advanced ancient civilization.