When a new substitute shows up, KO and Dendy decide they need to get their old teacher back.
A violent midsummer storm forces the fleet off the mining grounds. Shawn, Ken, Emily and Kris race to repair and improve their dredges for an end of season attack while reliving some of their most dangerous and triumphant moments on the Berinq Sea.
After Air Intacta mysteriously crashes in the Indian Ocean, the few survivors are all desperate to get home, but flight attendant Brett Sullivan has other ideas...
A phone addict solicits ideas for breaking his habit, and "Stranger Things" star Finn Wolfhard gets tips on dealing with a pal's lame text excuses.
The kids dish advice on a marriage proposal and mending a broken heart, then help Candace Cameron Bure of "Fuller House" plan a big surprise.
As the campus braces for Rikki Carter's speech, Sam and Lionel piece together the clues they've gathered on the secret society known as Order of X.
Gabe finally gets a chance to interview Sam for his documentary, but they both have trouble sticking to their promise not to make things personal.
Donald is dragged into a feud between Scrooge and Zeus, while Dewey and Webby search for an artifact that may provide the truth about Dewey’s mother.
While party-hopping on Pride Night, Lionel struggles to make small talk with strangers and decipher mixed signals from Silvio.
Everyone is forced to deal with some major changes at Boxmore.
Wanda Sykes wants to know how to tell the truth without hurting someone's feelings, while handsome Ben fears people can't understand his French accent.
KO tries to help a hero in need and ends up needing some help of his own.
Lionel puts his fledgling romance in jeopardy as he teams up with Brooke to hunt down @AltIvyW's identity for an exposé.
After Billy Eichner stops by for pointers on persuading people to call instead of text, the kids weigh in on a hair makeover and wearing a hijab.
Mr. Gar brings in some team building experts to help KO, Enid and Rad.
Fed up with the pranks pulled by her "Empire" co-star, Taraji P. Henson asks for suggestions on payback. The kids also offer financial advice.
"Modern Family" star Julie Bowen receives expert advice from the adorable peanut gallery on ways to stop embarrassing her sons when she's having fun.
Guests: Jon Meacham, Mayor Michael Tubbs, Michael Hayden, Sally Kohn & Matt Welch