On a busy Halloween night, Carter and Abby are the only staffers in costume when victims of an apartment building fire pack the ER. Corday takes on a new med student for a surgical rotation - Paul Nathan, who suffers from Parkinson's disease and decided to pursue medicine after being diagnosed. Despite a difficult first day, both professionally and medically, Nathan makes a difficult diagnosis. Romano's rehab lags behind his expectations, and he begins to doubt his role in surgery is no longer an option.
The scorching battle between Ash and Harrison rages on, with Charizard taking on Blaziken, a Pokémon from the Hoenn region!
Bartlet, Leo, Josh, Sam and C.J. pull a practical joke on Toby; Sam's mission to end the Wilde campaign leads him to make a career-altering decision; Jordan backs up Leo as he deals with the Qumari; Toby continues to press his case with a resistant Andrea; and Bartlet cleans Ritchie's clock in their debate.
Will Truman and Grace Adler are best friends living in New York, and when Grace's engagement falls apart, she moves in with Will. Together, along with their friends, they go through the trials of dating, sex, relationships and their careers, butting heads at times but ultimately supporting one another while exchanging plenty of witty banter along the way.
A struggling actress is murdered in an apparent robbery-homicide where a video tape, made by a couple touring the city sold to a local news station, shows three suspects loading the stolen property into an SUV. They are charged with felony murder, a capital crime, and causes unrest with Southerlyn surrounding the death penalty.
Max's coach asks George to have him sit out the next game. Rod Carew, Steve Garvey, Joe Morgan and Jim Palmer have cameos.
Jimmy tries to disprove Nick's scary tale about the Phantom of Retroland.
When Dawson assists Todd in throwing a blow-out Halloween party, Todd and Natasha have Dawson believing he is seeing the ghost of a legendary film actress. Jen becomes suspicious about C.J., and Joey gets stuck taking Professor Heston's daughter to a haunted house with Eddie.
Jay volunteered to be the director for Kady's kindergarten class play, but due to illness she is forced to step away from the production, leaving Michael to fill the void; he allows the kids to do whatever they want.
Ed represents a pair of squabbling morning radio hosts who want to split up after a twenty year friendship; Mike and Nancy find that their preemptive marriage counselor is more of a hinderance than a help; and Molly knocks some sense into Ed and Carol to prevent them from destroying their friendship.
Bernie is delighted that the kids are in a carpool because it means he will only have to drive them to school two days a week. The delight is short-lived when the carpool becomes more complicated. Jordan teases one of the boys in the car, so Bernie makes Jordan set up a playdate with him. Eventually the boy starts blackmailing Jordan to be his friend, and the boy's father won't stop bothering Bernie.
In need of fuel, the Enterprise arrives at a Quonset mining colony for deuterium supplies. They discover that Klingons are forcing the colonists to give up all their deuterium. Archer and the rest of the crew work to train the colonists so they can fight back against the Klingons.
Jim is upset when Cheryl's stuff takes over the entire house, leaving him with no private place of his own.
It's been a year since Jack lost his wife, and the emotional toll includes estrangement from his daughter Kim, who is now a live-in au pair for a troubled family. Jack is no longer with CTU, and no longer interested in that line of work - until he's summoned directly by President Palmer. The situation: terrorists have planted a nuclear device somewhere in Los Angeles and plan to detonate it within 24 hours.
As the legal guardian of two siblings he represented the year before, Nick must find the missing sister so she can be a bone-marrow donor to save her dying brother.
Martha's father William comes to town after many years of estrangement due do his disapproval of Jonathan. Meanwhile Clark must deal with a series of old-age deaths at Smallville High, and the new principal puts his foot down.
Paul seems to be the only one looking forward to a family Halloween, as Bridget, Kerry and Rory make plans to spend the spooky evening away from home and with their friends. But Paul's wish to relive the past by having the family get together for one last Halloween campout in the old treehouse may turn out to be the biggest nightmare of the evening.
Nina is throwing a Halloween party! At the party, Finch and Elliot compete for Blush's newest cover model, Kelly. In the end Finch gets her, only to find she is a lesbian who thinks he is a woman. Meanwhile, the jealous Elliot tries to keep Vicki from going home with a guy she met at the party.