Misty has returned to Cerulean City to step in as the Cerulean Gym Leader. But as soon as she arrives, she hears a news report about the Pokémon Investigation Agency closing Gyms that fail to meet proper standards—and rumor says Cerulean City is their next stop! Unaware that three of her enemies are in town, Misty rushes to the Gym and finds an out-of-control Gyarados in the pool. Neither Nurse Joy nor her sister's fan club can control it, and she can't just stick it in its Poké Ball while it's still upset. It's Misty's duty as Gym Leader to solve the problem, except she's also had a Gyarados phobia ever since she was a baby! Misty puts on a water show costume and swims in the pool, hoping to stir Gyarados's memories of performing together back when it was a Magikarp. Instead, Gyarados turns the pool into a raging whirlpool, and Misty blacks out. As her Horsea rescues her, she dreams of Ash and Brock telling her she can do this on her own.
Cheryl and the kids are invited to a neighbor's annual Christmas party, but Jim, who is feuding with the neighbor, isn't invited.
Daffy spoils everyone elses fun since he can't keep up with them and Bugs points out Daffy cannot even finish a single task. Granny rewards Daffy in return for trying to the finish even when things can't always go the way he wants them.
After failed attempts of flying a kite, blowing bubblegum and dancing, Sylvester is inclined to give up new activities altogether, until the others trick him into trying finger painting.
Bosco is dismayed as he watches Cruz go to the extreme lengths of planting drugs, frightening children, and faking a dying declaration in their attempt to arrest the drug dealer who killed another dealer and then tried to to kill the 12 year old boy who witnessed the crime; Nancy tells Ty that she's ending her relationship with Hancock, and gives Ty the ammunition he needs to get out from under Hancock's thumb and back to duty at the 55, as well as getting Sully's suspension from duty lifted.
Robert gives Ray a great idea on what to get Debra for Christmas, but he isn't very happy when Ray takes all the credit for it.
Dil's first Christmas finds Santa Claus driven to quit the toy-giving business by Angelica, who's unhappy about her gift: a "dumb" reindeer doll. Elsewhere, the grown-ups get snowed in at a re-creation of a pioneer cabin designed by Stu.
The next generation comes into play, as the children of both Jacob Clarke and Jesse Keys become the focus of both a government investigation and alien interest.
Not willing to breach confidentiality Lily makes a sacrifice to keep a late night confession secret. Elsewhere Dr. Macy and D.A. Walcott are forced to work together to put a sexual predator behind bars…where he belongs.
In the Season Four finale, Tony and Carmela contemplate purchasing a shore house, but a voice from the past threatens the deal. While Uncle Junior breaks out the Hearty Burgundy, Little Paulie and Benny break in a new sound system on the Stugots. With Carmine apparently intent on putting the past behind him, Tony and Johnny Sack weigh their options, carefully.
Bobby's preference for gardening over gridiron irks Hank, until he enters Bobby in a rose-growing contest.
While continuing on a mission to take control of six nuclear warheads, Sydney and Jack discover where Irina's loyalties lie when she meets up with Gerard Cuvee. Meanwhile, Sloane informs the Alliance that Emily may still be alive.
Farnsworth's clone Cubert teams up with Hermes' son Dwight to launch a newspaper delivery business. Farnsworth and Hermes scoff at the kids' efforts - until the delivery boys accumulate enough capital to buy out Planet Express. Meanwhile, Fry and Leela use Bender to brew their own homemade beer.
Andy suspects Jessica is being shared by twin brothers. Wendy volunteers to nurse Byron back from an injury.
Dr. John Becker goes through his daily routine of being a doctor, stopping at his favorite diner, and other various situations, all the while hating life and everything around him.
A cop-killing case rattles Bobby, whose anemic defense of an unsavory client leads Helen to suspect that he's "tanking the trial"; a drug bust raises search-and-seizure issues.
Cleo lands a gig on Ashley Angel's dance show before she and Abe have a chance to kiss, Gandhi's rap single becomes an instant hit, and a mischievous skunk outwits Principal Scudworth.
This episode demonstrates the production processes for ball bearings, electrical wires, lost wax process casting and automated machines, and shows how each is made.
Josie and Vaughn are transported through the wormhole in Professor Z's office and find themselves in 1977, where they meet their scandalously young principal and a teenage version of Vaughn's dad, Victor. Josie soon discovers that Vaughn has a hidden agenda: to see how his parents first met. But when Vaughn disrupts the timeline by stealing an object from the past, Josie returns to the present to see that Blake Holsey has drastically changed. Will Josie be able to find a way to change things back, or will she be stuck in a strange version of the present?