Season 20

Bounty hunter Ned is forced to scrap his partnership with Homer when the hapless layabout skips bail, and Marge mistakenly takes a job at an erotic bakery.

Bart lands himself in trouble when he steals a mobile phone from Denis Leary and subsequently uses it to land the actor a comical film role. The troublemaker then leads his family to the ancient ruins of Machu Picchu after Marge confiscates the device and decides to use its GPS technology to track her son.

An irreverent take on the Prince and the Pauper. Bart enthusiastically trades lives with a wealthy lookalike after landing himself in trouble for triggering a rampage of vacuum cleaners, but finds the lavish lifestyle too much when he becomes the target of all his new friends' pranks.

Springfield is the setting for parodies of Charlie Brown, It's the Great Pumpkin and Michael Bay's Transformers as Homer's vote on election day is misread by a renegade machine.

Homer and Marge remember the ups and downs of their marriage through a series of flashbacks, including the time they each began flirting with guests at a glamorous party - a situation that led to a food fight and an unexpected swim in the pool.

Lisa learns she is good at crossword puzzles and enters a city-wide contest. Homer discovers he has a flair for letting loved ones down so he opens Sweet Conclusions Break-Up Service, but lands himself in trouble with his daughter when he places a bet against her in the competition.

Lisa struggles to become the proud owner of a Mypod, and Homer believes Bart's new Middle-Eastern friend Bashir is involved in a terrorist plot to destroy the Springfield Mall.

Mr Burns wins a professional basketball team in a poker game at the annual billionaire's retreat. He decides to build a state-of-the-art facility in an attempt to lure fans, but the stadium site is on the last remaining bee colony in Springfield - prompting Lisa to lead a protest.

Lisa lets her imagination run wild when she makes a new friend and they create a magical kingdom together called Equalia, complete with characters and plotlines. But they find themselves facing a nightmare when the boundaries between reality and fantasy are blurred. With the voice of Emily Blunt.

Homer is jealous when old classmate Vance Connor is inducted into the Springfield Walk of Fame. Lenny and Carl confess they fixed the result in favor of Principal Dondelinger - leading the hapless father to speculate on how his life would have changed had he won the ballot.