After Stan and Roger have a rough day, they get into a fight that leads to a "Freaky Friday"-type switcheroo where they get a taste of life in each other's shoes. But after the excitement of a new life stales, they face each other's problems as Roger is under pressure at work and Stan yearns to be needed. The swap gets out of hand as the family starts to crumble.
After Brian has a near-death experience in the hospital, he decides to lead a new life. He ends up getting a nightly singing gig with Frank Sinatra Jr., but his new lifestyle doesn't last very long. Meanwhile, Meg, after joining a new after-school group, pretends to be a lesbian.
The result of Marge's anger against Quimby’s new toll road leads to the discovery of a frozen mailman and his 40-year-old mail. The old mail is delivered to the recipients, including one to Grampa Simpson's deceased wife, and it reveals a secret love affair and who the real father of her baby Homer might be. Confused and emotional, Homer finds Mason Fairbanks, his wealthy and much improved paternal dad, and happily establishes a father-son relationship with him while rejecting Abe, his surrogate father of 40 years, especially after a DNA test reveals that Mason is indeed his real father. Homer joins Mason on an undersea treasure hunt and when Homer’s life is in mortal danger he reflects upon his childhood and realizes who his true father is. When he confesses that to Abe, Abe has a confession of his own.
All the best bits from series 6 and 7. The presenters race each other to Oslo, with Jeremy driving the entire distance overland whilst Richard and James take public transport. Clarkson reviews the Ford Focus ST and Hammond discovers how many sideways rolls can be made with a Ford Sierra estate. Stars in a reasonably priced car Davina McCall, Christopher Eccleston.