Driving home from Moe's Tavern during a snow storm, Homer crashes into the family car parked in the driveway. Both cars are totaled. Homer attends the auto show to find a replacement. After encountering the Batmobile and Adam West, he buys a super deluxe snow plow and sets himself up in business as "Mr. Plow." He runs a late-night commercial and business booms. Thanks to Homer, Springfield remains operational during the snowy winter.

At Moe's, Barney mopes about his life. Homer advises him to take control and make something of himself, just like he did. The next morning, Homer discovers that Barney has bought a snow plow. After airing his "Plow King" commercial featuring Linda Ronstadt, Barney takes away all of Homer's customers.

For revenge, Homer makes a phony call to the Plow King asking him to plow the driveway atop avalanche-prone Widow's Peak. Barney accepts the job and never returns. Homer's business booms again, but when he learns that Barney is stuck under an avalanche, Homer feels guilty. Using his snow plow, he saves Barney's life. Just as they agree to be partners instead of rivals, the snow thaws, putting them both out of business.