Corner Gas - Season 4

Brent accepts the offer of a haircut from Karen, only to raise the ire of his regular "barber" Emma, who proves territorial about the task. Hank tests Lacey's patience after promising to stain her deck. Davis tries to convince Oscar to replace the muffler on his car, which is as loud as it is old.

When a morning radio DJ starts impersonating Brent on his show, Brent tries to prove to the people of Dog River - and especially Oscar - that it's not actually him. Lacey's upset when her new delivery service proves more popular than she'd like. And Davis and Karen find out that their work-to-rule campaign is a lot more work than they thought.

Hank installs a new digital thermostat for Oscar and Emma. Karen makes Lacey regret disobeying a local yield sign. Davis puts up a security height sticker by the door of Corner Gas.

Brent and Lacey mentor some high-school students in a job-shadow program. Hank gets a fondue pot, which upsets fondue enthusiast Davis. After a friend's divorce, Emma decides to be nicer to Oscar, which has unexpected consequences for Wanda.

Hank is hired to tear down a local's barn, which Oscar interrupts because he thinks the act could earn him Newsmaker of the Year. In his own attempt to win this honor, Davis hires Wanda to take action photos of him - a foolproof plan except that Karen keeps weaseling her way into the pictures. Meanwhile, Lacey is frustrated at having to constantly re-do Emma's nails.

Karen fundraises using Davis with special assistance from Hank. Wanda takes the improvement out of home improvement.

Hank has an epiphany and decides to live out his life-long dream of becoming a "professional" rodeo clown. Meanwhile, Davis tricks Karen into giving a speech about the unreliability of eyewitness testimony, something she's not keen to do; and Oscar gives up on being Emma's bridge partner, leaving an unsuspecting Lacey in his place.

Tired of hearing Hank's day-to-day ramblings Brent convinces him to write a blog. The only problem is that people care for this about as much as they did listening to him carry on about nothing. Lacey, in an effort to prove she's not spinning her wheels, takes Oscar on as the defending horseshoe champ and Wanda has gives Davis a hand with his taxes trying to prove to him that tax time is actually fun time.

Corner Gas is suddenly no longer part of Dog River, and Davis polishes his practical joke skills.

When Emma hauls her old piano out of the basement and decides to start giving lessons again, Davis and Wanda quickly sign up. Meanwhile at Corner Gas, Brent and Oscar disagree over buying a new air-pump or just fixing the old one. And after Lacey breaks her arm everyone is willing to sign her cast except Karen, whose reason is peculiar.

Emma takes up sewing and immediately realizes that she needs a quiet place, away from Oscar, where she can sew in peace. She decides to turn Brent's old room into a sewing haven, and Hank helps by taking Brent's old toys out of the way. When Brent finds out, jealousy rears its ugly head. Oscar doesn't like the fact that Emma has him on an allowance and decides to make money on his own by selling cookies. Karen strikes an uneasy bargain with Oscar as his partner, but she has ulterior motives. Davis learns what it's like to be discriminated against when he tries to order food from the Kids' Menu at The Ruby, while Wanda tries to ingratiate herself to both Corner Gas customers and the townsfolk of Dog River by being more 'down home.'

After neglecting to buy Emma a Mother's Day present, Brent finds himself trying to get back into her good books by crushing Hank's efforts to be a better son than him. This is nothing but good news to Oscar who realizes that he can now get away with pretty much anything. Over at the Ruby Lacey and Davis try to see who can embarrass the other more by bringing up each other's inabilities. Meanwhile Karen and Wanda buy a hutch from a Swedish super store and have some problems putting it together.

When Oscar must find a way to pay for Emma's damaged bushes he takes the census-taker job. The problem is, he's partnered with Hank, who would prefer to work alone. Meanwhile, Wanda and Brent try to make extra cash by selling meal-replacement bars; and a misunderstanding leads Lacey to believe that two of Dog River's finest are involved in a scandalous affair.

When Davis buys a table hockey game for the police station Brent and Karen show down to see who is the ultimate champion. Hank, in seeing how Brent is preparing for the big game decides that maybe Karen is a better role model to follow. Meanwhile, Lacey, thinking Emma is quite deserving of the award, decides to nominate her as a Woman of Distinction.

When Karen thinks that she and Lacey are past the point of asking to borrow things, it's open season on each other's possessions. Oscar, Emma, and Wanda are aghast that Brent has never seen a horror movie so they set out to scare the crap out of him. To save time getting things from his truck, Hank starts to wear cargo pants that can hold everything he could ever need...ever.

Wanda accidentally breaks Emma's famous Potato Bowl and feels mounting pressure to amend the situation. Meanwhile, Hank tries to become a better storyteller by making fun of Brent and Lacey; and Oscar, Karen, and Davis start their own secret club.

When Brent's glasses break, he decides to try different alternatives, but Wanda doesn't quite believe he's man enough. Karen and Davis take advantage of Hank's newfound slogan-writing talent by putting an original on the Cop Car, but the slogan's nature causes Oscar to take the law into his own hands.

Brent and Oscar have to take Davis on one their annual camping trip which makes things more complicated than they would have liked. Hank finds himself with a once-in-a-lifetime good hair day and does his best to hold on to it. And in an effort to prove to each other how difficult their jobs are, Lacey and Wanda decide to switch jobs for a while.

Hank has an idea to increase tourism to Dog River which causes consequences nobody could have foreseen. Oscar also has an idea but is afraid to bring it forward for fear of being labeled a crazy old man. The new found popularity of Dog River causes a business boom at Corner Gas and the Ruby as well as Wanda getting a weekly guest spot on popular Canadian news program. Davis tries to work as Fitzy's personal body guard during the transition while Karen thinks loyal, honest police work is best.