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?
A windstorm changes the name of The Ruby; Wanda requires equal rights at work, leaving Brent with more problems than he'd expected; the results of a jam contest leave Oscar concerned about Emma.
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.
Wanda's new way of getting around town brings a European flair to Dog River much to Brent's inconvenience. Lacey tricks Karen and Davis into helping her move. Meanwhile, Hank's new greeting puts him in an awkward situation with Emma and annoys Oscar.
Davis gets a lesson in sensitivity after Karen is offended by his blond jokes. Brent and Lacey try to convince Hank that superstitions are fake and Wanda takes on Emma's identity at the Rec Plex realizing that becoming Emma Leroy isn't as easy as she thought.
Brent has trouble proving to Lacey and Hank that he's a true Roughriders fan. Davis enlightens Wanda to the unwritten rules of mixed CDs, while Karen volunteers to read books at the seniors' home and has some unlikely fans in Oscar and Emma.
Hank, Karen and Wanda's willpower is put to the test when they try to make each other break their new year's resolutions. Davis tries to get out of making coffee at the police station and Brent and Emma teach Oscar a thing or two about being a Canadian citizen.
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.
Following the adventures of a bunch of nobodies who get up to a whole lot of nothing in the fictional prairie town of Dog River, Saskatchewan, Corner Gas focuses on the life (or lack thereof) of Brent LeRoy, proprietor of a gas station that is the only stop for miles around and a hub of action on the Prairies.