Small Groups and duets compete at the Nationals competition. James struggles with whether to include a challenging move in the small group routine.
When Mr. Grouper's van gets stuck in the holiday snow, Mr. Claws and his horse Snowflake come to the rescue! With snow falling and bells jingling, the Guppies will experience their first sleigh ride!
Among the missing: historic Moon Tapes that hold the clearest footage from the Apollo moon landing. Then, President Lincoln's brilliantly written Bixby Letter that inspired the movie Saving Private Ryan is missing. Plus: the daring heist of George Washington's false teeth from the Smithsonian Museum.
The Hoffmans overcome a lack of water to get a monster clean up. Tony finally gets his dredge on the way to its new home in Eureka Creek. Parker gets the biggest gold clean up in Gold Rush history.
Mike gives Kristin and Ryan some money to put toward their wedding.
As Kublai Khan battles his warmonger brother for rule over Mongolia, Marco learns that justice in Khans Imperial City is as swift as it is deadly.
When Kublai sets his sights -- and his army -- on the taking of the walled city of Xiangyang, Marco's allegiance is tested.
Korra and Team Avatar try to stop Kuvira from moving against Republic City Kuvira unveils a deadly new weapon.
Dwayne Johnson has a problem with problems and sets out to be the solution to the problem.
On the eve of an auspicious ceremony, Marco searches for the culprit behind the assassination attempt on Kublai Khan - even as a new one takes shape.
Marco searches for the mastermind behind a murderous plot, while Prince Jingim weighs the risks of retaliation.
The recovering Reid finds the unconscious Lady Vera Montacute in Whitechapel next to the corpse of a flower seller.
The guests on Graham's sofa: Hollywood stars Jim Carrey and Jeff Daniels, talking about their new movie "Dumb and Dumber To", actor Jude Law, starring in adventure thriller "Black Sea", and actress Tamsin Greig, on stage in "Women on the Verge of a Nervous Breakdown". Music comes from Nicole Scherzinger, who performs "Run".
Flying off on a summer holiday, Lucy and Daisy endure the worst flight of their lives when Lee gets a bad case of the jitters on the plane.
Shazia and Amjad's wedding day has arrived, but all is not well in the Khan household.
A stamping kit that proves Santa Claus visited a home; a man hopes his book and plush toy will become part of the Jewish holiday tradition; an easier way to move Christmas lights from storage to display mode; a flexible device that eases pain.