When Stewie sees a man who looks just like him on TV, he's convinced that he must be his real father. Stewie sets off on a cross-country road trip to find him, but his incredible journey leads to outrageous discoveries.

After losing at a swim competition, Stewie trys to eliminate his rival by blowing up a lifeguard tower. His plan backfires though, and Stewie has a near death experience that seems to change him.

Stewie convinces Brian to go on a road trip with him to San Francisco to search for a man Stewie believes is his real father.

Stewie finds out that his life in the future is miserable. So he decides to go back in time and change events for the better.

When Homer hears that the Isotopes are on a winning streak, he takes the family to the game. The first baseman’s game is going bad, caused by his sexy singing wife Tabitha embarrassing him during the game’s national anthem. Buck Mitchell sees Marge and Homer’s kiss on the game’s Kiss-Cam and comes to them for marital advice. They start working with the couple and Buck’s baseball career turns around, but it and the Simpson marriage goes awry again when Buck catches Homer giving Tabitha a neck massage. While Marge and Homer try keeping their marriage together they also try to get Buck and Tabitha back together.

Jeremy, James and Richard each design their own amphibious vehicle and test it on a Stafforshire reservoir. Jeremy has a Toyota Hilux, James a Triumph Herald with a sail and Richard has a Volkswagen camper van painted to resemble a canal boat. The new Lotus Exige S is given the freedom of the Top Gear track and Philip Glenister is the Star in a Reasonably Priced Car.