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Fourth-grade friends George and Harold have a shared love of pranks and comic books -- and turning their principal into an undies-wearing superhero.
2019
With Mr. Krupp gone and two terrible Melvins in charge, Harold and George fight back by hypnotizing their gym teacher, Mr. Meaner.
The boys recruit kids to join the M.I.S.F.A.R.T.S. -- the Mega Incredible Search Force Adventure Rescue Team Squad -- and bring Mr. Krupp back to School.
After injecting all the teachers with bee DNA, the Melvins run the new "hive mind" of the school -- until Ms. Ribble accidentally becomes queen bee.
George and Harold train a rat for extra credit. But when their subject escapes into the sewers, he's doused with toxic waste and becomes ... Poopacabra!
Who knew a thawed-out dinosaur could read comics and pull pranks? Well, this one does -- and he's one of Harold and George's biggest fans.
Captain Underpants becomes a wanted man when a criminal who looks just like him starts robbing banks. Can George and Harold help clear his name?
The boys use Melvin's new animal hybrid invention to make a creature that's a cross between a butt and a fly. But these butt-erflies are real monsters!
After George and Harold work with Erica to create a new comic book hero, she springs off the page -- and plunges into real-life crime fighting.
The boys transfer to a bizarro version of Jerome Horwitz Elementary, where the teachers are nice, the kids are good ... and fun is nowhere to be found.
George and Harold trick Melvin into turning their bus into a time machine so they can reroute their field trip and see what ancient Rome was really like.
The Melvins' latest invention sends the boys' Dump Day "trash-alanche" into another dimension -- and inadvertently summons a monster.
A final exam sends George and Harold to the Doom Dome, where they must battle Melvin -- who's been injected with powerful nanobots -- in order to pass.
Summer camp is on the line as Melvin's nanobots find a new host in Captain Underpants, forcing the boys to shrink down and go inside his brain.
2019
Harold and George can't wait to spend the summer together at camp. But not so fast, boys -- your old nemesis Mr. Krupp has a most unpleasant surprise.
Stuck in separate camps, Harold and George unleash a hyperintelligent talking possum to scare the pants off of Krupp. What could possibly go wrong?
Eager to get the campers out of his hair, Krupp orders them to climb Plummet Peak, where a terrifying creature is rumored to reside.
Harold and George don't ask for much -- just a fun scavenger hunt that doesn't include doing Krupp's errands. Careful what you wish for, fellas.
A run-of-the-mill arts and crafts session turns into an interdimensional adventure from which Harold, George and company may never return.
Krupp's campers take on rich rivals in a hoity-toity boat race that also features a revenge-obsessed giant salamander. Paging Captain Underpants!
The campers' splat-tastic game of paintball is rather rudely interrupted by a foul and formidable fiend known only as Camoflush.
With fun in short supply, Harold and George persuade Krupp to dump the campers in the middle of the forest so they can learn to rough it.
The pressure's on Harold and George to tell the scariest campfire story ever. Perhaps their tale of an ill-fated frontier dentist will do the trick.
A fierce game of plot potato takes an unexpected twist when Melvin unleashes one of his most fiendish -- and carb-loaded -- creations yet.
Despite being terrible at the job, Krupp wants to be the camp director again next summer. That's something Harold and George simply cannot abide.
It's parents' weekend at Lake Summer Camp, and Krupp's eager to make amends with Harold and George ... or so he says.
George and Harold want Cash Networth to buy the camp and fire Krupp. But before he'll agree to pony up the dough, Cash has a small request of his own.
Nat Faxon
Captain Underpants / Mr. Krupp (voice)
Jay Gragnani
Harold (voice)
Ramone Hamilton
George (voice)
Sean Astin
Narrator (voice)
Peter Hastings
Comic Narrator (voice)
Jorge Diaz
Melvin (voice)
Dayci Brookshire
Jessica / Dressy (voice)
Evan Kishiyama
Steve 'Gooch' Yamaguchi (voice)
2018
George and Harold get revenge on their gym teacher by writing him into a ridiculous new comic. But the joke's on them when life imitates art.
A school dance sounds like fun -- but only if the boys can keep their music teacher from playing DJ and putting everyone to sleep.
To get out of an epic assignment, George and Harold go back in time to the moment homework was invented to try and stop it before it starts.
After Erica critiques their comic book, George and Harold create a brand-new character -- a vampire who sucks the joy out of everything.
A T.P. prank gone wrong leads to clogged toilets -- and a fateful explosion -- that turns the boys' new French teacher into a mummy.
Holy guacamole! George and Harold are so determined to win an avocado-growing contest that they accidentally turn their science teacher into a monster.
Rumors swirl around the shadowy Bo Hweemuth, a mysterious student with secret gifts who has the whole school living in fear.
The boys' latest comic inspires their jorts-wearing Spanish teacher to become a superhero with otherworldly powers.
After Erica compares her suspension to a vacation, a jealous George and Harold pull every prank in the book so they can get suspended, too.
A chocolate-pudding "incident" sends George and Harold into hiding. But there's a new principal when they come back -- and no one remembers them!
The boys travel back in time to stop Mr. Krupp from becoming a bully, only to find that their plan has turned him into a ruthless businessman.
To steal Mr. Krupp's rule book from a tightly locked safe, the boys cook up a super-intelligent gas cloud who winds up turning against them.
It's a race against time as George and Harold try to get Mr. Krupp fired before he can have them expelled. But first: a faceoff with the Toot Fairy!
