With the final clue in hand, Jane attempts to gather the remaining Red John suspects in one place in hopes of finally revealing his identity.
When Bob gets a job cooking at a frat house, he and the brothers find themselves in the middle of a prank war; the kids hatch a plan to invade the frat house.
Following the last show of Austin’s tour, the gang does some sight-seeing at a Washington D.C. museum, where Austin accidentally gets stuck to a priceless object and must find a way to return it before performing for the President.
Jack and Sara face the repercussions of Drew's discovery; Elaine turns to an unlikely source for support; Zarek takes drastic measures to deal with Brandy.
After seeing a client trick riding, Georgie is determined to pursue it despite Lou's objections.
Beau gets a job offer and must decide whether to stay in Denver with Teddy or move back to Tennessee.
The gang takes on a case of stolen memory, only to discover they're all forgetting something… or someone. The new Morrígan is hell-bent on making sure some memories stay buried forever.
Kenny's personal life takes a toll on his work; Stevie keeps up appearances in the face of adversity; Kenny learns a valuable Christmas lesson.
Michael Portillo travels on the great train routes of Europe, as he retraces the journeys featured in George Bradshaw's 1913 Continental Railway Guide.
Mr. Gold and Regina send Ariel back to Storybrooke with an item that will allow Belle to locate a hidden artifact that could help take down Pan. But unbeknownst to them, two men have broken into the town with the intent to stop them - at all costs. Meanwhile, Emma, Neal and Hook attempt to find Dark Hollow, where Peter Pan's shadow dwells, in order to capture it, and Mary Margaret is upset with David for keeping his poisoning a secret from her.
Masters and Johnson continue their sexual response study – now as participants – but Johnson fears their work may be interfering with Masters’ home life. Libby pressures Dr. Haas to resume her fertility treatments in secret. Meanwhile, Haas struggles to let go of feelings for Virginia as his relationship with Vivian deepens. And Margaret Scully, caught in her infidelity, confronts her husband on the mounting problems in their marriage.
In Abu Dhabi, the teams rappel almost 200 feet and race cars at high speeds.
Doc Ock launches a surprise attack on Spider-Man and the heroes. They soon find themselves in one of the most challenging battles of the season when they're up against the newly reformed Sinister Six. Norman Osborn also returns as Iron Patriot despite Ock's alternate plans for him.
Debbie heads to the Temple of Tombs to retrieve the second scroll, but, to get there, she needs the help of a wizard who has lost his Mojo.
Marge encourages Homer to cross an item off an old to-do list by inviting an old pen pal to visit; Lisa institutes an honor code at school.
When Meg spills her lunch on the new kid at school, he makes plans to end her. Meanwhile, Peter keeps harassing Brian in the nude until it reaches the breaking point.