Clarence, Sumo und Jeff gehen mit Clarence’ Mutter in ein Restaurant, das auch ein Spieleparadies für Kinder hat. Da Jeff nicht in den Spielbereich will, weil es ihm dort viel zu schmutzig ist, muss sich Clarence etwas einfallen lassen. Tatsächlich gelingt es ihm, Jeff aus der Reserve und ins Spieleparadies zu locken. Ob es Jeff wohl lustig findet, dass Clarence ihm einen Streich gespielt hat?

Amy und Clarence sind auf der Suche nach einem großen Stein, der von Gletschern an einen anderen Ort getragen wurde. Auf dem Weg werden sie von Belson entdeckt, der in Amy verliebt ist und prompt die anderen Jungs versammelt, um der Sache nachzugehen. Am Ende treffen sich alle Jungs auf der Straße, wo Clarence schließlich seine Sandwiches mit den anderen teilt und ihnen von seinem Tag berichtet.

Clarence, Sumo und Jeff besuchen eine Spielhalle. Da die drei Jungs gemeinsam nur einen Dollar zur Verfügung haben, müssen sie sich das Geld gut einteilen. Während Clarence schnell alles verspielt, findet Sumo endlich das perfekte Spiel für sich. Es dauert aber nicht lange, da geschieht das Unerwartete: Clarence wirft aus Versehen einen Basketball gegen einen Automaten, der Gewinne ausspuckt!

Clarence muss mit seiner Mutter in den Supermarkt und soll Milch holen. Mit seiner Konzentration ist es aber vorbei, als er das Hinterzimmer der Supermarktverwaltung findet und kurze Zeit später auch noch auf Sumo trifft, mit dem er in den Gängen ein ziemliches Chaos veranstaltet. Als die zwei schließlich noch den Einkaufswagen von Clarence’ Mutter rammen, haben sie den Bogen endgültig überspannt.

Als Clarence begreift, dass einige Kinder in der Schule durch das Benotungssystem zurückbleiben, kommt ihm eine Idee. Er führt sein eigenes Bewertungssystem ein. Schnell steht die Schule Kopf.

Ashley und Clarence verstehen sich in der Schule sehr gut. Als Ashleys Freundinnen das mitbekommen, überreden sie das Mädchen, mit Clarence abends auszugehen. Das Date der beiden gleicht jedoch einer mittleren Katastrophe. Clarence tritt von einem Fettnäpfchen ins andere, bis Ashley schließlich fragt, ob sie nicht einfach weiterhin nur gute Freunde sein können. Dankbar stimmt Clarence zu.

Jeff möchte sein neues Spielzeug sicher verwahrt in der Schachtel lassen, während Clarence unbedingt damit spielen will. Der arme Sumo sitzt indes wieder einmal zwischen den Stühlen.

Als Clarence Mutter ihren Sohn zu einer steifen Dinnerparty schleppt, hat der Junge wenig zu lachen. Doch er gibt nicht auf und begibt sich auf eine fanatische Suche nach allem, was Spaß machen könnte.

Clarence versucht, seine Kommunikationsfähigkeiten zu verbessern, und probiert sich an einer Sirene. Das Ergebnis ist wahrhaft schrecklich.

Clarence veranstaltet eine Schnitzeljagd, um neue Freunde zu finden. Dazu vergräbt er Geld im Boden, das die anderen suchen sollen. Dumm nur, dass seine Mutter ihm das Geld eigentlich gegeben hat, damit er Getränke für das Treffen ihres Buchclubs zu besorgt.

Clarence und Belson geben ein wirklich seltsames Paar ab, als sie während eines Ausflugs im Zoo vergessen und dort eingeschlossen werden.

Endlich erhaschen wir einen kurzen Blick auf die wilden und geheimen Abenteuer, die Clarence jeden Morgen erlebt, bevor überhaupt die Sonne aufgeht.

Clarence's first night home alone spirals out of control, forcing Clarence and his pals to wage war against their own home security measures.

A nap in mud seals Clarence's eyes and leaves him sightless, potentially dooming his team's chances in the school's ill-conceived "Vision Bee."

Sumo devotes himself to the Sisyphean task of building a boat, defying the expectations of everyone in his life, including himself.

Clarence struggles to make a connection at an all-girls slumber party, leaving Sumo and Jeff at odds without Clarence as their "friendship buffer."

Clarence, Sumo and Jeff's nature hike veers off course courtesy of their under qualified, overwhelmed guide Josh, prompting Clarence to take the lead.

Jeff suffers an identity crisis when a standardized test lands him in the lesser of the classes academic groupings.

Clarence and Sumo chase a lizard to unexpected rewards as Jeff jockeys for playing time on Belson's spectacular new gaming system.

After Clarence and his indecisive classmate Brady are left behind at school, Brady is forced to tag along on Clarence's adventure home.

Clarence is so troubled by the sight of his teacher in a social setting outside of school, he can't stop himself from intruding on her doomed blind date.

Belson invites Clarence and friends to a sleepover party, with a catch: whoever can survive the night's pranks and scares will win Belson's old Acedia game system!

Clarence's innocent attempt to ingratiate Chelsea, a girl, into a boys only tree fort puts Sumo in charge of an effort to gross Chelsea out and preserve the status quo.

Clarence, Sumo, and Jeff reminisce about the day they first met - although a few of the details are foggy.

Clarence must somehow navigate the mind-numbing boredom of a doctor's office waiting room to earn the ultimate prize - candy from the reception desk candy jar.

When a corporate sponsorship of Clarence's school turns into an ominous corporate takeover, Clarence must stand up to the the man, no matter how tasty the chicken may be.

Clarence and Sumo look to throw together some quick cash so they can invest in Chad and Sumo’s dad’s new business venture, a boutique sculpture shop.

Jeff enlists Clarence to help him prepare for the big Aberdale cook-off. Will Jeff keep his cool or freak out and toss his dish away like in years past?

Clarence and Sumo hit the jackpot when they get suspended for a week, learning all sorts of different facts they’d never learn in class, but after a few days the suspension takes its toll, boredom sets in and the boys want to go back.

While reading a confusing text message in class, Ms. Baker assigns a weekend project on turtle hats, and the kids struggle to figure out exactly what that entails. When presentation time comes, Clarence, Jeff and Sumo are left to improvise.

While at the park, Clarence happily feeds some birds his sandwich, imagining himself as their king. He has a great time until one persistent goose will not leave him alone!

Clarence buys a goldfish, but when the goldfish bag breaks before he can get home, Clarence must keep his new friend out of harms way and get him back into water before it’s too late.

While playing in the woods the boys befriend a wild dog, bring it home and name it Chimney. When the boys find themselves trapped in a well, the new pup is their only hope for escape.

In an escalating series of dares, Clarence eats five hundred hard-boiled eggs, delighting the kids around him. As Clarence grows sicker and sicker, the kids get more and more grossed out until they want nothing to do with him.

As punishment for making a huge mess in their house, Belson’s mom makes Belson clean up, offering their usual maid service to Mary and Clarence. Embarrassed of their messy house, Mary and Clarence hurry to clean up before the maid arrives.

Things in the Wendle household are turned upside down when Mary’s mom Dyllis comes to visit, butting her way into every corner of Clarence, Mary and Chad’s life.

It’s time for the Aberdale Greased Pig Chase and everyone’s excited except Clarence. He feels bad for Butterscotch that he takes her place in the pig chase, running from townsfolk eager to take home the prized barrel full of hot dogs!

After Clarence discovers that Mr. Reese falls asleep during detention when given a doughnut, it becomes the spot to be during recess. When Jeff gets wind of it he transforms it from a fun hang out spot to a too-cool-for-school club.

It’s time for Clarence’s first summer job helping out his mom at Hip Clipz Salon School, but when a rude customer bosses around Mary and her staff, Clarence gives her a haircut she’ll never forget.

After playing a bit too aggressively with his Lil Buddy doll, Clarence gets timeout and his worst nightmare comes true. He misses the entire recess!

While Clarence spends Saturday playing an adventure game, Dragon’s Cusp, Mary asks him to return some mail to the guy across the street Chalmers Santiago, whom they’ve never seen. Clarence makes it his mission to befriend the neighbor.

Jeff is set to go to bed so he can wake up for the morning meteor shower when Clarence suggests they stay up all night. As they struggle to stay awake, their reality slips away as deprivation induced hallucinations play tricks with them.

The trio heads to Squirty’s Moist Mountain water park, and as Clarence learns the truth about his idol Squirty, Jeff and Sumo wait in line for the reopening of the parks tallest slide, The Curd Churner.

Chad takes Clarence out to the woods for some camping but Clarence is disappointed at the cushy set up. To make it a more rugged adventure, Clarence ditches Chad’s wallet, cell phone and all their food.

Clarence and Sumo are psyched to play their pirate-themed board game until they learn Jeff has invited boring old Breehn along. After Breehn gets frustrated and leaves, it’s up to the three scallywags to rescue Breehn from an intense flood.

Jeff has everything in place for his birthday at Papa Petey’s Pins and Pies but Gilben is also having his party there, stealing Jeff’s thunder. Jeff gets even more upset when the kids suggest they merge their parities for a double birthday.

An argument between Jeff and Sumo escalates until they vow never to speak to each other again. At first Clarence enjoys the separation, he’s got someone to play with but he becomes exhausted and must scheme to get the guys to be friends.

While watching a TV show about dreams, Clarence dozes off and enters the dreamscape that hovers above Aberdale. Clarence can see other people’s dreams. When things turn nightmarish, Clarence must find a way to escape back to reality.

Ms. Baker introduces a new student, a short little kid with a hook for a hand named Balance. Clarence is pumped to have a new friend, despite Balance’s gruff attitude and snarky jibes at the other kids.

After Clarence leads a few neighborhood kids through his homemade haunted house, Chelsea suggests they go to the high school kids haunted house for some real scares.