It’s end of school year. Mark is faced with changes and challenges ahead, but when he’s tasked with giving the graduation speech he takes some time to reflect on how his friends and family shaped him.

When Mark finally gets the chance to take the stage as a stand-up comedian, he realizes he doesn’t have his own distinct voice. And so, Mark draws inspiration from those who matter the most to him.

The Critches are doing their annual airing out the house ritual, but when some family secrets are uncovered, it turns out they’ve got some dirty laundry that needs to be aired too.

Mark is elated to find he has not one, but TWO valentines, but juggling two girls turns out to be harder than he expected, and so instead of two plus-ones, Mark ends up with none.

Mark is excited for Halley's Comet, but the magic is lost when he learns Fox is moving. A new restaurant being built near the Critch house threatens to change the family forever.

When Mark realizes his friends think his comic book collection is immature, he impulsively sells them all and quickly regrets it.

Mark and his friends compete on “Reach for The Top”, but when the game starts and they face Mark’s crush Cara, Marks’ heart sets his brain to stun.

On a field trip, Mark and Cara fall asleep in the same bed, resulting in a scandalous photo circulating school. Meanwhile, Mike Sr struggles with his memoirs and Mary has a mid-life crisis.

Mark is stunned after a friend dies and the school mourns a classmate few remember. Meanwhile, Mary takes a course but is mistaken for the instructor. Mike Sr and Pop take an emotional train ride.

Parents and students take the field on Sports Day. Mark decides to treat the all-day gym class as a comedy stage, much to his teammate’s annoyance. Meanwhile, Fox fights for her mother’s attention and attempts to break the school record for gold medals.

On NYE Fox asks Mark to babysit while their parents double date; Ritche imparts advice leading to a big blowout; Mike Jr and Amanda share sparks, and Pop has a blast at home.

Mark has a near-death experience and he’s left questioning life, death, and the afterlife. Is there a god? Has he chosen the right one? And most importantly, does this change how Fox feels about him?

Mark uncovers dark family secrets when he researches the Critch family tree. Meanwhile, a death in the family causes Pop to reassess his relationship with his son.

Mark faces bathroom woes. Fox finds herself parenting her brothers. Poppy Bell visits and family tensions rise.

Mark invites Fox to a party with his grown-up theatre troupe where he frustrates her by acting like an adult. Dick is upset to find Mike Jr. dating his daughter.

When Mark starts a business venture as a school project, he quickly realizes that running a profitable company is more than having a good haircut, talking loudly, and exploiting underlings.

Fox volunteers at Paul's house for a chaotic party, while Mark struggles to keep order. Mike Jr., Dick, and Amanda drive the Party Wagon, and Mary juggles tasks for her internship.

Mark is devastated to learn Fox found a new boyfriend over the summer. Meanwhile, Mike Jr struggles to tell his dad he dropped out of school.

Mark starts high school at a former girls' school, finding joy in theatre while navigating old friendships and new love. Pop's ham radio hobby leads him to an intercepted distress signal.

Mark’s first day of junior high is marred by a bully — a young girl named Fox. But when he stands up for himself, he learns that words can hurt more than fists.

Mark uncovers proof Sister Rose cheated but hesitates to publish; Mike Sr. covers the Meech Lake Accord as Mary scores an exclusive; Pop does some redecorating.

When Ritche bails on their plans to go to the circus, Mark and Fox find themselves going together on a maybe-date. Meanwhile, Ritche’s family hosts some new Filipino-Canadians who make him feel insecure about his heritage.

Desperate to seem more mature, Mark heads off school grounds for lunch, but things take a turn when the Fox boys offer Mark his first beer. Meanwhile, Mary takes a job selling Avon products.

Tensions rise between rival schools as Fox finds a friend who invites her to a field party; Mark worries about older kids; Mike Jr hires Dick's daughter as the new VOCM promo girl.

Fox's boyfriend threatens to beat Mark up after school. Mary learns Mike Sr is making less money than their son, and pushes her husband to demand a raise.

Mark tries to fake being healthy after falling ill the day he is supposed to meet the Pope; a rival radio station tries to tempt Mike Jr. away from VOCM, breaking Mike Sr.'s heart.

The kids are allowed to wear jeans at school for Spirit Week. The only problem is that Mark doesn’t own a pair. Meanwhile, Sister Rose picks Mary to join her choir.

When Fox’s father gets arrested, Mark lobbies his father not to report on the crime. Meanwhile, Pop and Mary steal cable with a descrambler.

Mark stars in a PSA for young women and meets experienced child actor Steve, who inspires him. Meanwhile, Mike Sr. relapses at Mr. Murphy's retirement event, leading to a confrontation.

Mark is eager to begin his final year of elementary school. Finally, he’ll be at the top of the social food chain! But when Mark discovers that he needs glasses his cool guy dreams come tumbling down.

Mark and Ritchie receive police protection after witnessing a grizzly crime on Halloween night. Fox grows tired of her brother’s increasingly delinquent behaviour.

Mark takes directing the school play too seriously and finds himself without a cast and crew. Mark stubbornly tries to perform the play alone but realizes he’s not a one-man-show.