The Planet Express crew journeys into Fry's dreams and attempts to complete a mission in the year 1999 and discover the meaning of a mysterious, alien melody.
Hank tries to spend more time with Bobby during a boat-building contest, but he ends up leaving the work to his son after getting spooked by a colony of bats.
Lucky must step up and take the fall when Luanne's long-lost father gets out of prison and quickly resumes his life of crime by robbing an Arlen eatery.
Bill's sweet tooth finally catches up to him as he is diagnosed with diabetes and confined to a wheelchair; Bill is befriended by a compassionate rugby player.
Hank suggests Strickland go green after a paper threatens to run a story about the company's illegal dumping; Dale helps out by organizing a benefit concert.
Three nerdy high schoolers go to great lengths to obtain liquor for a party in the hopes of impressing their would-be girlfriends before they leave for college.
Marge tries to get the family in the holiday spirit; Mr. Burns and Moe's new friend delay the Simpsons as they try to sneak away to Hawaii for the holidays.
The Simpsons flash forward 30 years and find themselves in a tech-savvy, futuristic Springfield; Bart and Lisa spend the holidays with Homer and Marge.
When the nuclear power plant has a radiation leak that causes snow all over town, tourists greatly overwhelm Springfield causing Marge to open up to boarders.
Krusty wants to impress his daughter while they spend Christmas with the Simpsons; Reverend Lovejoy brings converts to the church after attendance drops.
While Peter attempts to push the holiday spirit onto Lois's dad, who despises the day, Stewie is faced with what it means to confess during the Christmas-time.
Peter is asked to step in and play the mall Santa for the time being, until he realizes that Santa can get away with anything and gets drunk with power.
After he takes up smoking cigarettes, Peter is promoted as the face of an anti-smoking campaign by an advertising executive who wants him to continue smoking.
Brian winds up giving Stewie a sexually transmitted disease, all while Peter and the guys take on a group that has claimed their booth at The Drunken Clam.
Peter proves to Lois that he is a dependable, mature adult after he takes Stewie to the park for valuable father-son time and comes home with another baby.
Cleveland Brown strolls back into town but is immediately prohibited from spending his time with Peter after Lois and Donna wind up in a big altercation.
Stewie is enraged when Chris and Peter get in the way of his television time, leading to another adventure through time where he tries to stop his conception.
Peter helps Joe become an author, but tensions rise as Peter begins to take total control of the book, and at the same time Brian works out excessively.
When a man begins building a "McMansion," the entire neighborhood protests, but when City Council does nothing, they take it upon themselves to leave a message.
After an initial loss in an investment on the stock market, Peggy, Minh and Dale decide to observe an "average man" and choose Bill as their guinea pig.