When the wrong man is arrested for pickpocketing Springfield during the San Castellaneta street festival, Chief Wiggum sets out to catch the real criminal.
The 30th Treehouse of Horror features a demon Maggie, a mission to rescue Milhouse from another dimension, dead-Homer's spirit trying on some new bodies for size and Selma finally finding love in an unlikely place - the alien in the basement.
After visiting Aquatraz Water Park, Lisa and Bart set out to free from captivity the most vicious animals in Springfield. Homer fulfills a lifelong dream and buys a boat, only to realize how much boat ownership sucks.
Marge becomes a competitive lumberjack and goes on a month-long retreat to Portland with her trainer, whom Homer fears will take his wife away from him.
The Simpsons join other Springfield families on the Van Houtens' annual trip to Costa Rica, where Homer befriends Patty's new girlfriend and Lisa discovers how the Van Houtens are able to afford this trip every year.
The Simpsons face various Thanksgiving nightmares, including the first Thanksgiving, an A.I. mishap and a dangerous space mission complicated by a sentient cranberry sauce.
Todd blames God for his mother's death and rejects his faith, so Ned sends him to live with the Simpsons, hoping they can scare him into believing in God again.
Sideshow Bob gets the role of Santa Claus at Santa's Village amusement park. Meanwhile, someone is stealing all the Christmas packages off people's front porches.
The sea captain finds treasure for which he's been searching for 40 years, but City Hall claims it since it was in city limits. Marge convinces the townspeople to use the windfall to build a STEM school. Homer crusades against automation.
Marge gets a job at an upscale cannabis dispensary leading Homer to open a competing business that replicates the scuzzy days of scoring weed from an old-school pot connection.
Maggie reunites with baby Hudson, but Marge isn't too crazy about his mom. Homer befriends Cletus Spuckler who recently discovered a vast underground reserve of helium gas on his property, attracting unwanted attention from Mr. Burns.
