Lacey tries to work out where she and Brent stand after the Grey Cup incident. Karen launches a full investigation after reports of gunfire around town, only to discover it may be an inside job. Hank suckers Oscar into buying his old outboard motor, using money he stole from Emma.
Brent is shocked to find out his parents never married but Oscar and Emma are talked into a splashy nuptial ceremony by an unlikely wedding planner. Hank disputes Brent's ownership of a Darryl Sittler rookie card he claims Brent unfairly won when they were kids. Lacey makes it her mission to help Oscar with a problem he's not aware that he has.
Davis regains his sense of smell in a freak but fortuitous accident. It's a beautiful new world, until the smell of his fellow officer proves too much. Meanwhile Brent realizes just how little he knows about his fellow Dog Riverites and scrabble champ Lacey is challenged by an unlikely wordsmith.
Lacey's birthday party is ruined when her deepest fear reveals itself, but it turns out everyone in town has his or her own unique fear, except Wanda. Brent and Hank determine to discover what freaks her out. Oscar tries to prove to Emma that he can cook, and Hank and Lacey prove to be bad liars.
With some grunt work ahead at his cousin's farm, Hank is desperate to call in a favour from Brent to help him. But Brent doesn't owe him any favours and he's going to make sure it stays that way. Brent enlists Lacey's help, only to find out that in a favour war, you have to choose your allies carefully. Karen drives everybody crazy with her new Hacky-Sack and Oscar is thrilled to collect junk, but Emma isn't.
Brent buys a big-screen TV but circumstances lead his friends to believe he's broke. Lacey buys handmade jewelry from Wanda and finds you can put a price on friendship. Oscar and Emma engage in a battle of petty revenge after Oscar criticizes Emma for never putting the lid back on the sugar bowl.
Lacey's new sandwich becomes a little too popular. A spike in traffic convinces Mayor Fitzy to install a traffic light. To pay for it he orders Karen and Davis to crack down on jaywalkers. Hank and Oscar engage in civil disobedience as Brent tries to calm everyone. Wanda is excited to get a tattoo until Emma offers to help her design it.
When Brent installs a security camera at Corner Gas, he isn't prepared for the private moments caught on tape. Two unlikely conspirators hatch a plan to deal with the camera, and Hank sees the chance to fulfill a lifelong dream when Davis gets a new stun gun. Oscar and Emma's romantic getaway falls short of expectations.
At bingo night, Wanda steps in after the regular bingo caller takes a tumble. She's a hit with everyone except Emma who takes drastic steps to restore her winning streak. Lacey learns that her home-made cookies can't compete with the "road cookies" Brent sells at Corner Gas. Karen is temporarily suspended from the police force and spends her days hanging out with Brent leaving Hank feeling left out.
Mosquitoes hit the town hard and only Hank seems unaffected. Lacey finally gets a chance to participate in a genuine Dog River activity by contributing to the town's less than impressive time capsule. Oscar goes back to work at Corner Gas which irritates Wanda, puzzles Emma and sends Brent running to the Ruby.
A schism in the Leroy family curling team sees Brent and Oscar skipping different rinks. When a local senior's hip replacement creates a shortage of female curlers, Lacey finds herself the hottest rookie prospect in the league. Karen is put in charge of safeguarding Dog River's famed curling trophy, the Clavet Cup, which turns out to be harder than she thought.
Hank acts as goodwill ambassador to Bill, a savvy American, who visits Dog River but isn't the best choice. A new ATM machine at the Liquor store draws a loyal following, leaving Lacey to wonder where all her customers have gone.
Lacey brings an expensive wine to dinner at the Leroy's which moves Oscar and Emma's tastes into a bracket they can't afford. Hank wins a small sum in the lottery but imagines everyone is treating him differently. Despite warnings from Brent and Wanda, Karen makes the mistake of talking Davis into getting new boots.
Lacey gets the job of convincing a doctor to set up shop in town but the doctor finds Dog River overwhelming. With Hank needing a place to crash, he goes through a series of hosts. A hundred dollar bill provides Brent with many freebies when no one can make change for it.
Brent, Hank and Wanda resurrect their old high school rock band Thunderface. The local bar owner is thrilled but not for the reasons the band thinks. Davis takes an unusual interest in Oscar's claim that a famous country and western singer stole his song. And civic-minded Lacey uncovers the dark secret behind Dog River's name.
A nearby airshow excites the locals but Lacey's initial ambivalence gets her into trouble which she tries to remedy with the help of the Snowbirds. With Corner Gas under repairs, Hank's new corn stand sees success. Mayor Fitzy orders Karen and Davis to patrol the town on bikes but Karen is oddly reluctant.
The Corner Gas Guzzlers meet Wes' "Wild Ones" in a softball game which a wager turns into a fierce competition. The Guzzlers face disqualification if Lacey doesn't show up in time and coach Oscar sows confusion. Davis and Karen deal with their teammates pretending their drinks are non-alcoholic while Hank breaks in a new glove.
Dog River's annual Harvest Dance is quickly approaching. Hank has found a date, an attractive girl named Heather, but the town doesn't approve of her. Brent and Oscar plan their excuses to not eat Emma's jelly salad. Still feeling she doesn't fit in, Lacey discovers her inability to lie helps nearly everyone, especially Karen and Davis.