With Mr. Krupp gone and two terrible Melvins in charge, Harold and George fight back by hypnotizing their gym teacher, Mr. Meaner.
Penelope finds out Elena and Syd secretly got a hotel room. A grounded Alex enlists Lydia to stand in line to buy him the latest designer sneakers.
Penelope feels hurt after seeing an item on her mom's bouquet list that's about her. Dr. B finds the key to teaching a struggling Elena how to drive.
Rain ruins Valentine's Day plans, causing more than one couple to have their first fight. Schneider tries to hide his wealthy background from Avery.
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.
When Penelope discovers Alex's secret Instagram account, his crass posts spark an intense family discussion about consent and harassment.
Schneider makes a big decision in order to please his visiting father -- at the expense of Penelope's family. Lydia finds Alex's confiscated pot.
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.
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.
Sibling rivalry rears its ugly head when Penelope's brother, who can do no wrong in their mother's eyes, shows up during a family getaway to San Diego.
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 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!
Elena hides her grandmother's high heels. Penelope starts to see a male friend in a new way. Schneider meets a kindred spirit at the school auction.
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!
Jimmy Carr hosts the words and numbers quiz that this week pits Sean Locke and Michelle Wolf against Jon Richardson and Rob Beckett. Spencer Jones joins Susie Dent in Dictionary Corner.
The Melvins' latest invention sends the boys' Dump Day "trash-alanche" into another dimension -- and inadvertently summons a monster.
Theres an exclusive fashion show at the local nursing home. Somehow Anna and Maya make it in, but feelings of inadequacy lead them down a shady path.
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.