When Elena invites Mateo to move into his own Royal Wizard quarters within the palace, his mother assumes she is invited to move in too.
Leaf creates a graphic novel with a superhero based on his sister, Ivy. But when the publisher insists on changing the lead character to a boy the kids must convince the publisher that girls can be heroes too.
Milo and his friends try to save the old clock at City Hall that Melissa's great-grandmother designed. Meanwhile, Doof tries to help the city by removing sidewalk gum under Agent P's supervision.
Bob and the pups head to Washington to compete in an environmental invention competition.
After meeting a duckling that thinks he's a puppy, the pugs must teach him to be a duck.
When Piper's school parrot, Otto, starts to repeat that Henry is Kid Danger, Henry and Jasper have to stall until Ray, Charlotte and Schwoz can find a way to fix things.
When Cami inadvertently loses the money for the upcoming school dance event, the only person willing to help her is a quirky new classmate named Delaware.
Eric and the Crisis Resolution team are brought in to negotiate a blood money payoff when a man is murdered and his wife is threatened to be next.
Sabrina Bryan of The Cheetah Girls has a dress-shopping date with designer Hayley Paige; one of Kleinfeld's own consultants is going to be a bride herself.
Mikey goes on a solo mission to retrieve a classic video game based on Lou Jitsu's film Hot Soup. Incidentally, however, he will have to contend with the Foot Clan's new recruit who is on a very similar mission at the very same auction house. Note: Ice Cream Kitty from the previous series makes a cameo as a statue.
"Black Monday" actor Don Cheadle hosts with musical guest Gary Clark Jr.
Jimmy Carr hosts the words and numbers quiz that this week pits Sean Locke and Joe Wilkinson against Jon Richardson and Harriet Kemsley. James Veitch joins Susie Dent in Dictionary Corner.
Susan Calman heads to central Scotland, where she tries her hand at curling - in full view of an Olympian - and learns to Highland dance. At the iconic Wallace monument, Susan discovers what it's like to hold William's sword.
While off duty, Danny witnesses a gas station robbery in progress and is forced to use his weapon, leaving him shaken and his family and co-workers concerned. Eddie apprehends a turnstile jumper who pleads for leniency by offering information on a missing weapon that's vital to one of Erin's cases. Frank learns that a top officer in his department has a dark past.
In the U.S., Larry explores how racial division becomes comic fodder for minorities and immigrants -- as well as underground alt-right humorists.
Larry interviews soldiers who have turned their painful combat experiences into comedy, including a veteran whose injuries fuel his stand-up routine.
Guests: Mayor Rahm Emanuel, John Legend, Paul Begala, David Frum & Maya Wiley.
The team look for answers in the abandoned tunnel before heading home, where they try to make sense of it all. But the phenomena doesn’t appear to be finished with them.