Perry White, a once promising journalist whose career was destroyed by Lionel Luthor, arrives in Smallville in search of alien stories for a tabloid news show. In spite of being constantly inebriated, Perry believes he has witnessed Clark using his extraordinary speed, so he devises a dangerous scheme to expose Clark's superpowers. Meanwhile, Lex learns that Perry has powerful incriminating evidence of Lionel's shady past.
Archer, Reed and Major Hayes infiltrate a Xindi-Sloth industrial colony to learn more about the weapon of mass destruction that will be used against Earth.
The boys have hit a crossroads with their band "Moop." Cartman wants the band to play Christian Rock, and leaves the band when Stan, Kyle, and Kenny don't agree. Before leaving, Cartman bets Kyle $10 that he will get a platinum album with a Christian Rock band before "Moop" can.
In order to have the scariest Halloween costumes ever, Jimmy uses his latest invention to morph Carl and Sheen into a Vampire and a Werewolf.
The day-to-day lives of three orphaned children who are adopted by aliens that have trouble adjusting to the local culture.
Everyone is back home in Newport, and Marissa is recovering. Julie points her finger at Ryan and forbids him from seeing Marissa, who does not appreciate the help. Sandy starts his new job, but finds himself surprised by the case work. Kirsten finds herself surprised by Sandy's new co-worker. Ryan enrolls at his new school, with conditions. Julie gets an intervention, and Jimmy gets a new roommate.
The team is introduced to the ""Furry"" side of Vegas when a man is found dead on the side of the road, dressed in a racoon suit. Elsewhere in Vegas, a gunshot victim is found in a deep-freezer, frozen solid.
When the partners of Carrie's law firm notice Doug's softball skills, they ask him to pretend that he's a lawyer in order to play on their company team. Carrie worries that Doug won't be able to pull off being a lawyer, but he is so convincing, an opposing firm offers him a job. Meanwhile, after tracing his ancestry, Arthur believes his great-grandfather was a slave owner and makes it his own personal mission to correct things with Deacon on his ancestor's behalf.
Strange things happen when Lorne has his sleep removed right before Wolfram and Hart's big Halloween party.
When Jackie finds out Kelso has a new girlfriend she chooses Hyde over him, but--surprise!--he has someone new too. Eric is living with his parents to help out his dad, but all he wants is to be with Donna in Madison. Meanwhile, Kitty still tries to convince Eric he should stay with them and not go to Madison. Eric finally realizes that he can't go away to school, but is surprised to find Donna still plans to. Kelso also finds a problem when he drinks eggs only to find out he is allergic to them.
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.
Things are pretty hot between Craig and Ashley, but he's disappointed that she keeps pulling back from going all the way. She wants to know Craig loves her, and since he is unable to express himself in words, Craig pours his heart into song. With her heart melting, Ash decides she's ready. An exuberant Craig can't help sharing the news with Spinner, whose innuendo-laced jokes cause Ash to call the whole thing off. Craig storms out followed by Manny, who offers Craig a sweet, supportive shoulder to cry on. Soon, Craig and Manny are caught up in the moment—a moment that goes farther than either of them anticipated. Worried about her husband's deteriorating spirits during his chemo, Spike enlists Joey's help in cheering him up. Reluctantly, Snake joins Joey for a night of bowling and is definitely not impressed when his troubled high school buddy Wheels shows up – until he shares how he dealt with his own checkered past.
Will Bailey receives an offer to become Vice President Russell's top aide. Amy Gardner does some skillful lobbying for domestic violence prevention which gets the wrath of Bartlet. A conservative democratic senator switches parties.
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 teenager's need for parental love, acceptance and recognition sets in motion the events leading to the deaths of 23 concert goers for a band's illegal pyrotechnics.
Frasier overhears Ronee making a date with another man. He tells Martin, who is furious at him for eavesdropping. Ronee later breaks the news to Martin herself, explaining that she didn't think they had an exclusive relationship.
A schizophrenic homeless man kidnaps a boy he thinks is his son, murdering a man in the process. In resolving the case, with Dr. Huang's help, a private mental health facility is brought into question.
Sipowicz, Russell, and Clark attempt to connect the murder of a young woman to two other killings; Medavoy and Jones investigate the shooting death of a mother whose children feared her.
Three years have passed since the events of Day Two. A van deposits a dead body outside the LA Health Unit. The body is infected with a deadly virus. Tony, now in charge of CTU, learns that this is a blackmail tactic to get the US government to release a drug lord, Ramon Salazar, whom Jack has just brought down, before Salazar's brother releases the virus into LA. Jack and his new partner, Chase Edmunds, prepare to sign a deal with Salazar at the prison. Salazar delivers a mysterious warning to Jack before killing his lawyer. Palmer is alive and well, and has returned to LA for the first time since the attack three years ago. He is running for re-election and is preparing for an important debate with a rival senator. He is accompanied by his brother, who happens to be his chief of staff and his doctor, who also happens to be his girlfriend. A young boy, Kyle Singer, is seen examining a large, mysterious bag of white powder. He plans to deliver it to some dealers later that day, but he is being watched by Salazar's men. Kim now works at CTU and has been dating Chase for three months. Kim wants to tell her father, but Jack has a mysterious health problem that may make things more complicated.