After a schoolmate claims to be an alien and proves it by using heat vision, Clark investigates and believes the boy is from Krypton. Meanwhile, Helen confronts Lex over the locked room in the mansion that holds his investigation of Clark's secrets.
A woman is kidnapped…thirteen years later her body washes up in Boston. Jordan is convinced the killer is the husband…but the evidence does not support her theory. Meanwhile, Dr. Winslow had to identify a body at the morgue.
Dylan and the crew search for a Nietzschean slip-scout carrying a probe that enables one to map every meter of the slipstream
Kim is invited to a party by Noble. Noble is arrested through an undercover operation. He becomes an informant and helps Cruz and Bosco bust a Meth ring. Faith officially requests a new partner. Emily and Faith face off about Eric.
Kim and Greg are horrified to find peanuts in the backyard, since Sam is allergic to them. Wondering who was careless enough to bring them into their yard, they soon find the culprit -- a squirrel. Greg sets up a metal trap to catch the little bugger, so that Sam will be able to go outside again. The squirrel takes the bait, but Greg is too afraid to touch it to get rid of it, so Jimmy -- who's just as scared -- has to do the honors. While en route to dispose of it, it gets out of the bag Jimmy put it in, crawls on Jimmy's leg, and ends up out of the car and back in the yard when he and Greg run for cover. Since Kim knows it won't fall for the trap twice, she hints that Greg should kill it. Greg doesn't want to, until Sam asks if he can go outside to play. While he ponders how to off the thing, Jimmy suggests borrowing a pellet gun from Billy. Kim and Christine head off to the beach, Billy pops by dressed like Elmer Fudd, and the three guys get set for some good old-fashioned squirrel
The team tracks down a pyromaniac mutant but matters are complicated when Emma is ""possessed"" by the spirit of his most recent victim.
Two air couriers find themselves caught in a conflict against The Guild, an organization with absolute authority over the skies.
Kim tries to be a friend to Regina so Nikki can stir up catering business at a book club, while Professor Oglevee enlists T's help for a chili-cooking contest.
Marie announces that Rose, the elderly lady living next door to her and Frank, has passed away. She is upset because Rose was the woman she had chosen for Frank as a replacement wife, if Marie should pass away first. Debra thinks it would be fun to fantasize about who would take her place.
Horatio is approached by a parolee he helped put away several years ago, who begs for his assistance in finding his missing teenage son. As the investigation gets underway, Horatio discovers that the boy may be planning a deadly assault at his high school. Meanwhile, as Speedle investigates a man's death, the victim's flirtatious girlfriend, who was there when he died, tries to play on Speedle's obvious attraction to her.
Flex throws a retirement party for his father. There a nervous Natalie meets his mother for the first time. Eunice disapproves of Flex's girlfriend. Flex doesen't understand at first but when Flex's paternal grandmother still holds her grudge against his mother he starts to understand why. Meanwhile Breanna, Spirit, and Arnaz look after Eunice's dog but it dies when Breanna runs over it with her car.
After dying to save a boy, delinquent tough guy Yusuke Urameshi is granted another chance at life by redeeming himself as a "Spirit Detective."
Danny asks Doug for a letter of recommendation at IPS so he can move up to being a driver like Doug. Since this idea does not appeal to Doug, Carrie decides she will write the letter and have Doug sign it. Danny ends up getting the job and puts Doug's skills to the test, and his job on the line, when his ability to beat Doug's delivery time has the boss giving Danny Doug's route.
When Piper and Leo begin to have marital problems, Piper casts a spell to allow them to literally see their past together. However, the spell goes awry when Phoebe and Paige are sent back in time to relive Piper's memories, and a warlock bent on destroying the Charmed Ones tags along for the ride.
After yet another Homer and Marge fight, Homer ends up sharing a condo with two homosexuals - who don't exactly think Homer is straight.
A group of familiar relatives and friends is united in mourning. Meanwhile, David and Keith play 'Leading Ladies' at brunch with members of the Gay Men's Chorus, Ruth and Arthur perform a rendition of 'My Favorite Things,' and Rico grows increasingly concerned about Vanessa's 'intense energy.'
Snowflake Day is coming up, a dumpster diver who may or may not be Mandy Moore steps in to teach Joan the true meaning of the holiday, and Abe sets out to get Cleo the perfect gift.
Peggy takes over the organic garden at Bobby's school, but an insect infestation threatens her hope of making the post permanent.