Beck falls into a trap and discovers a shocking secret; Able uncovers a plot to build a super weapon.

Robin takes steps to have Patrice fired from WWN, while Marshall puts a jinx on Barney. Later, Ted invites his architecture professor to the dedication of the GNB building, and Marshall and Lily bump into an oddball acquaintance from college.

The final two vocalists perform.

Conclusion. Christmas approaches and Ted wrestles with whether to tell Robin about Barney's intentions involving Patrice, while Marshall and Lily get an early Yule gift, a night away from Marvin, but a case of separation anxiety strikes and threatens to ruin the evening.

While in Michigan s Upper Peninsula, the guys stumble upon Woody the woodcarvers 80 acre property which features a Finnish sauna, an art gallery outhouse and a 100-year-old barn that s packed to the rafters. And later, the guys get first dibs on an aviation museum s once-in-a-lifetime sale and their guide turns out to be an American hero with an amazing story.

The Series Finale begins with the stars and executive producers bidding farewell to the Upper East Side in a look back at the show's many unforgettable moments. Then, in a fashionable farewell to remember, our favorite Upper East Siders join forces for one last soiree, and the shocking identity of Gossip Girl is finally revealed.

Desperate for a way to pay their overdue rent, Max and Caroline get involved with a group of of sketchy customers willing to pay top dollar for their cupcakes.

Culinary finds in Toronto include Mexican takeout, hand-cut fries with cheese curds, and a sandwich made with peameal bacon.

Mike is frustrated when Molly's Christmas spirit takes over and starts spending a lot of money. Meanwhile, Victoria new karaoke machine is the main attraction at the Flynn home, and Peggy forces Mike and Molly to spend Christmas Eve with her and the Captain at church.

Following a public mishap, Skip, the First Son of President Gilchrist, is ushered back to the White House so he can be kept under careful watch. Meanwhile, Dale attempts to keep a cool atmosphere when South American leaders visit to discuss a trade agreement. Elsewhere, Emily tries to make peace with her stepdaughter Becca, who has a surprise in store for everybody.

When Kya first met "Alyx" online, she used a fake name and fake pictures. She later told him the truth and Alyx forgave her. Nev helps Kya finally meet Alyx, who she says she has fallen in love with but has never actually met.

After someone foolishly tries to carjack McGarrett, he and Catherine meet a boy whose father is missing and may be in deadly trouble in the backwoods of Oah.

A Pachycephalosaurus runs wild in the city; and Evan encounters the Albertosaurus that killed his wife.

A 1912 dinner menu from Alcatraz; a bomber jacket that was supposedly worn by a Word War II fighter pilot. Also: Chumlee organizes a Christmas party.

An Italian movie poster for "Bullitt"; a collection of military documents signed by U.S. presidents. Also: Chumlee throws a Christmas party.

Amanda Seyfried, Adam Pally, Jon Dore

Tom Cruise, MNDR

Megan Fox, Colbie Caillat

Sarah Chalke, Anne Rice

Ollie returns to the hospital, having spent time away attempting to research Tara's condition. Michael is paying extra attention to his romance with HCA, Ramona. Chantelle still has no clue where she stands with Rhys.

Alan has trouble deciding which of his old friends he should choose to be his best man. Caroline and Gillian discover they were born on the same day, but their respective celebrations descend into emotional chaos when John discovers his wife has been seeing another woman - and he in turn tells Celia.