In the sensational, not-to-be-missed, top-secret final episode, Brent's mysterious disappearance every Wednesday night has the whole town talking. When it is discovered he has been pursuing a lifelong dream, the gang is forced to cope with the news. After six unforgettable seasons, how will Canada's favourite comedy series come to an end?
When Emma inadvertently finds herself a substitute teacher at the elementary school she asks Karen and Wanda to talk to the kids about their careers, causing tension to erupt. Lacey's attempt to make the Ruby more birthday friendly goes too far. Meanwhile, Brent and Hank panic after they suspect Oscar has eaten a thirty-year-old snack cake.
Brent and Hank decide to take a trip down memory lane stealing crab apples from a neighbour’s yard that gets Hank in trouble. No one wants Oscar on their charades team, until he proves his skills. Davis and Wanda find reasons to write angry complaint letters to companies in hopes of getting free stuff.
Emma keeps a watchful eye on the citizens of Dog River to ensure the town reigns supreme over Wullerton ('spit') in "Turn Off Your TV Week". Lacey and Oscar find a profitable way to break the rules and Karen and Davis hit the radio airwaves to help everyone cope. Brent finds a creative way to get through a week of no TV with the help of Hank and Wanda.
When it is announced that Dog River Days has been canceled, Lacey enlists the help of Davis and Hank to save them. Emma asks Oscar to get rid of the stray cats in her garden, but the task proves more difficult than Oscar thought, and gives Karen a new reputation. Brent fakes an injury in Corner Gas to teach Wanda a lesson.
When Karen forgets to pay for a muffin, she finds out what it's like to be on the wrong side of the law; Hank changes his email password, forcing Wanda to try to get inside his head in order to figure out what the new password is; Brent takes to the kitchen to prove that he can cook dinner as well as eat it.
Hank’s mockery of Brent’s air conditioner temperature lands him in hot water at Corner Gas. Karen and Davis win a meat draw but trouble starts when they have no where to store it and trust Oscar and Emma with their stash. Lacey and Wanda unleash their maternal instincts on an unwanted pet left at the Ruby.
Brent thinks the self-serve option at Corner Gas will make his life easier, until he discovers his customers are enjoying it a little too much. On the other hand, Lacey’s Ruby buffet has her customers working overtime. Wanda’s quest to reclaim her title as Rumour Queen proves disastrous for Karen and Emma, while Hank’s old laptop becomes a hot potato when he tries to sell it to either Oscar or Davis.
Davis’ decision to take on Brent and Lacey as the sponsors for his soccer team lands him in hot water with the players’ parents. Meanwhile, Karen is spooked out of the police cruiser driver’s seat and enlists Hank’s help getting around town. And when an old tape of Wanda doing television projects for a college broadcast course winds up in Oscar and Emma’s hands, it’s all fun and games until Oscar and Emma find out the last laugh is on them.