Season 3 is the third season of Clarence. It began on February 10, 2017, only one week after Season 2 ended. The season premiered with the episodes "Sumo Goes West" and "Valentimes."
Clarence learns his best friend Sumo may transfer to another school! It’s up to Clarence to protest, petition and rally to convince everyone to let Sumo stay – or face losing his closest school pal!
When Clarence notices his teacher Ms. Baker is the only one in class left without a Valentine this year, he decides to enlist the help of Sumo to set her up with Sumo's teacher, Mr. Mozer.
It’s school election time at Aberdale Elementary, and Jeff is once again determined to become Class President. However, like previous years, he’s unsuccessful in connecting with other kids, that is until he sees a shoe-in puppet President, the lovable Clarence!
Clarence plans to throw the sleepover to end all sleepovers with decorations, pillow fights, and games, but there's one thing missing - guests; Clarence wants invite all his friends, but finds that they might need some convincing.
During the storm, Clarence goes out to get Jeff a raisin drink. While gone, Jeff has to stay in the house with Chad and Mary, and eventually goes crazy about having the house cleaned. They later set out to find Clarence.
During the power outage, Sumo and his family hide in a bunker. Him and his dad fight over whether Sumo's pet badger Candice should stay with them in the bunker.
While trying to get to California for vacation without telling Clarence, Miss Baker gets trapped in the store with Clarence, the Mayor, Meg (the substitute teacher) and one of Jeff's moms. The four get suspicious of Meg and try to leave the store.
As the storm gets worse, everyone gets stuck in the school's gym and eventually fight. After Clarence gets them to get along, the big flood occurs and everyone works together to block the flood from entering the school.
The boys go the Aberdale Community Pool for a day of wet fun; Jeff wades in the shallow end; Sumo tries to conquer the diving board, redeeming himself from last summer's bellyflop; Clarence sneaks past the lifeguards into the hot tub.
At a baseball game that Belson's dad gave them tickets to, Chad, Clarence, and Belson try to find ways to keep themselves entertained; Clarence tries to get the attention of a team's mascot.
After surprising Clarence with Martial Arts classes at the Aberdojo, Mary gets talked into joining the class herself. She loves the slow-paced lessons in discipline and control, but Clarence just wants to have fun and kick butt.
Clarence finds a fast friend in JT, who shows him some cool new music, a new outlook on life, and a sweet rat-tail; Clarence leans into the rat rail lifestyle, discovering a whole new side of Aberdale he never knew existed.
When Jeff realizes Sumo’s new classes have been rubbing off on Sumo, he attempts to further foster this newfound intellectual Sumo! But will Clarence’s lowbrow antics reverse Jeff’s hard work?
Clarence feels the call of the wild – and decides to live a life free of the hustle and bustle of the modern world. He sets out to find a place to live his feral life, but soon realizes he lacks some basic survival skills.
After Clarence accidentally knocks Belson’s new video game down a storm drain, Belson enters the large underground sewer tunnel to retrieve it. When Belson doesn’t return, Clarence must decide whether or not to go in after him.
Clarence throws a big talent show in his yard to showcase all the fun hidden talents of his friends. But when Brady claims he’s talentless, Clarence sets out to prove that everyone has something special to share!
Clarence spends a day outside with his toy RC Car, which he names Carla. Eventually convinced Carla has a mind of her own, he decides to follow her to new adventures.
When Clarence’s neighbor Gale recruits him to dog sit for her, he knows it will be a breeze. However, Gale’s dog proves to be a little more challenging than he expects!
Mary buys a new trampoline for the family, but an accident lands her on the couch for a while. Determined to fight the boredom of being stuck indoors, she discovers her neighbor may be hiding something exciting.
When Clarence starts to play around with his home video camera, he becomes drawn into the world of filmmaking. From talking toys, to real actors, to documentary subjects, Clarence is determined to find the right style to tell his story!
Clarence is in disbelief when he learns his best friend Belson has a new girlfriend named Pipi. But when he observes their less than romantic behavior, he decides that he needs to teach them the ways of love to help keep their fling afloat!
After a marathon of classic sitcom episodes, Clarence becomes stuck as alter-ego “Clarry,” an obnoxiously overacting sitcom version of himself. It’s up to his friends and family to help him snap out of it, or face life with a new Clarence.
Clarence submits a short story into a writing contest. He’s overjoyed when he learns he’s accepted as a finalist! When Jeff finds out Clarence has to attend a formal dinner, he fixates on transforming the messy Clarence into a gentleman.
Clarence, Jeff, and Sumo visit their local video store to rent a movie, but discover it’s all rented out! Each of them have a different idea of what tape to bring home, and must enlist the help of a tie breaker to figure it out.
Clarence sees that Sumo has made friends from West Aberdale, thus worrying for his actual friendship with him. Clarence needs to decide if he continues the friendship with Sumo or start a life without him.
