NORBAC investigates the release of crudely weaponized biological agents in a west coast forest fire; a stranger with a message threatens to release a deadly form of synthesized smallpox; Rachel and Carlton's son Crain is attacked by a crazed bear in a northern park.

Principal Skinner opens a CTU Counter Truancy Unit at Springfield Elementary School with Lisa heading up the operation. Homer is sent to dispose a container of yogurt so far past its freshness date that it could be toxic, but the reeking yogurt falls into the hands of Dolph, Jimbo and Kearney. With the help of Jack Bauer and Chloe O'Brian, Bart and Lisa must stop the bullies from releasing the ultimate stink bomb at the schools bake sale.

When Homer buys the 1,000,000th ice-cream cone at a local shop, he ends up on Kent Brockman's news program. When Brockman swears on live TV after coffee is spilled in his lap, Ned Flanders leads a crusade to clean up Springfield's airwaves, starting with getting Brockman fired. Then Homer once again saves the day.

Bill has to shape up for an upcoming Army physical, but when he becomes friends with a group of body builders he becomes aggressive and develops a bad attitude. Hank and the gang have to come to the rescue.

Season finale. When Lucky wants to give Luanne the expensive wedding that she desires, he sues Dale with a frivolous lawsuit after having an accident on the job. After Lucky's lawyer finds out that Dale does not have insurance, he goes after Strickland Propane.

Roger becomes a bounty hunter, and he and Stan race cross-country to turn in Jeff, who is wanted for smuggling pot into Florida.

As Gabrielle prepares for her fairy tale wedding, Bree returns to Fairview with a surprise. Meanwhile, Lynette's mother Stella (guest star Polly Bergen) pays her a visit after finding out Lynette has cancer. Finally, Susan and Mike tie the knot in an unexpected location.

Death grants Peter's wish to go back in time to 1984 when he was 18, but only for one night. He ends up bailing on a date with Lois to hang out with a movie actress. When he returns to the present, he soon realizes that everything is anything but normal, as he is now married to the former actress, and Lois is with Quagmire. Meanwhile, Stewie, Chris and Meg have also taken on Quagmire's charming characteristics.

Tony attempts to help settle differences between New York and Jersey, but his offer is rejected by Phil Leotardo. Meanwhile, A.J. continues to battle his depression and Meadow's father comes to her aide when a New York associate crosses the line.

Randy and Phil Collins go into business together, opening a restaurant called "The Dirty Burger". Meanwhile, Barb Lahey finally finds out who is her secret admirer.

Gene decides to take Sophie to San Diego's Camp Pendleton to help her do some research for a school paper she has to write on the armed forces. After a lot of smack talking back and forth, they are thrown into a few brutal basic training exercises. No one is laughing now.

Nora organizes an engagement party for Kitty and Robert. Justin is about to be deployed to Iraq, and he tries to have special time with his family members to say goodbye. Kitty finds it hard to tell her mother that she will be moving out. An old friend of Saul's visits after his divorce.

Drama has an offer from Brett Ratner for Rush Hour 3; Ari finds a backer for Medellin, but the source of his wealth, and his wife's intentions toward Vince, are shady; Turtle has a date with Kelly, but it is under the watchful eye of her father.

It's highlights from Season 3 with original introductions by Carlos.

In this episode the king receives a special guest. A papal envoy has come to discuss the annulment of the King's marriage to Katherine of Aragon, as requested by the King. The outcome of these discussions will determine Cardinal Wolsey's future career as well as the King's romance with Anne Boleyn. These discussions will also influence the nature of the relationship between England and Rome.

Norman is back from hell and is ready, yet again to bring back his demonic master.

This week Vicki tries to break the world record whilst traveling in an A1 racing car. Hatchbacks that are available on the market are compared by Tom and Jonny.

When a camera and film belonging to a photographic lab assistant murdered in 1987 are found in a Soho pub toilet, the team reopen a 20-year-old case.
Elsewhere, Gerry is less than happy when his daughter Emily joins the team and looks to Sandra as a role model.