When Stan gets told by Francine to get rid of his gas-guzzling SUV, he and Roger hatch up a plan at the local horse track to avoid losing his car. Meanwhile, Steve and his friends help an old friend.

When Peter hits his head and suffers amnesia after getting in a fight with Richard Dawson on Family Feud, he forgets everything about his life, including his family and friends. In an attempt to try to bring back his memory, Lois decides to reintroduce Peter to his old self, until he begins to hit on other women, much to Lois's dismay. She decides to take the kids and leave Peter, giving Quagmire the opportunity to score with Lois. Peter now must prove to Lois he can remember her and make himself worthy of her again.

Grampa is sitting on a bench waiting for his family when a thoughtful-looking man named Marshall Goldman approaches him and asks to hear about his life. Grampa tells Goldman about the time he was on a World War II battleship, which was hit by an enemy torpedo, and Goldman, a human-interest columnist, publishes it in The Springfield Shopper. Later, Grampa meets Mitch Albom and shares another story with Goldman for a follow-up article. Homer becomes jealous of Grampa's newfound fame and seeks a surrogate father. But when Homer discovers a draft of Goldman's third story, he must race to find Grampa before it is published and his life is changed forever.

Jeremy Clarkson makes a film about the BMW X6 and ends up conducting one of the most expensive road tests in Top Gear history. James May drives the new Vauxhall Insignia VXR, accompanied by Margaret Calvert, the designer of Britain's road signs and Richard Hammond tests the 340,000 pound Lexus supercar on the Top Gear track. The star in a Reasonably Priced Car is blues musician Seasick Steve.