Meg gets two Cs on her report card and Helen, more concerned about it than Jack is, thinks it would be a good idea for Meg to accompany her to her Temple class. Meg dislikes the idea, but not as much as she dislikes the fact that Luke agrees with her mother. Roxanne is also at odds with her mother, so she stays with the Pryors. Meanwhile, Beth notices JJ talking to Colleen; Jack hires Henry's nephew, Nathan; and it seems that there's a bullying problem in Will's third-grade class.
Andy sleeps with Jessica's cleaner causing Jessica to replace her with an old married couple recommended by Byron.
While Alliance counterintelligence head Ariana Kane tracks Sydney in order to catch her fugitive father, Jack elicits Irina's help in finding Sloane's blackmailer. Meanwhile, Sydney and Vaughn risk exposing their covers to SD-6 when they share a romantic dinner together while on a case in France.
After kidnapping Phoebe, Cole sends a shapeshifter to assume Phoebe's identity to help him manipulate Piper and Paige into giving him ownership of the Manor, allowing him access to the powerful Nexus located beneath the house. Meanwhile, Phoebe plans her escape, and Cole gets Paige arrested and ensures that Piper's club fails to pass health inspections in order to keep them distracted.
When Kif gets pregnant, Amy questions her readiness to become a parent.
The teens at Clone High begin smoking raisins, which sets them on a groovy, music-filled trip, so Principal Scudworth and the PTA develop a plan to fence in the students.
Johnny struggles to rescue four teens trapped in a collapsing mine, all while reliving - and in some way trying to redeem - sins from his family's past.
Personal grief has to be put aside when brilliant detective Red Metcalfe is faced with a series of grisly and sadistic killings. Each body provides a taunting clue to the murder method to come and the police team and their families could be next on the hit list.
Black Hole energy interferes once again. While the Janitor senses something will soon occur, the members of the Science Club continue their exploration of the paranormal phenomenon which afflicts the school. But secrets concerning strange phenomenon at BHH are given to Victor Pearson by Vaughn. As a result, Vaughn is in a bad mood. Which literally produces a strange occurrence! Do his emotions cause the catastrophic storm above his head? How will Vaughn make the gray clouds, which follow him all the time, disappear for good?
Children unwittingly reopen an ancient battle between Autobots and Decepticons.
When Animology sweeps over the school, Kim tries to avoid it, but she gives into the fad. Meanwhile, the Seniors start their most dangerous plot to date.
Barnaby investigates a death which looks very much like suicide. The dead man was a troubed and depressed gambler on a losing streak, but Barnaby's nose tells him to look for a murderer. During the investigation he recognizes someone from his past, in the shape of Dr Jane Moore.
A six-year-old girl is critically injured in an apparent robbery-gone-bad and later dies. The investigation gets complicated when it is discovered that the murders were designed to silence the young girl, who was sexually abused.
The girls audition for a television talent show with a bit of help from Sabrina's magic.
After accidentally returning to Earth, Crichton discovers it he is in 1985 and he has altered the time line, causing his father to be scheduled to fly on the doomed shuttle 'Challenger'.
The team is called into battle unexpectedly when the Asgard homeworld is overrun by Replicators -- which have evolved into a startling new form.
JT the class clown gets in trouble and spends the week afterschool with the hot science teacher Ms. Haztilakos but along the way he finds that she is a person not just a hot teacher and he earns her respect. Jimmy and Spinner are starting to tell the truth forever and end up with unexpected results.
After Oswald fails his nursing school exam, Drew feels bad and helps him get a job at the web site. Oswald finds a way to nearly destroy the entire business. He ends up being reassigned to a job that he (sort of) knows how to do--delivering packages. Mimi repeatedly sucks up to Traylor in an attempt to get on her good side after trying to kill her.
The Delightful Children From Down The Lane attack Sector V's headquarters with an infestation of hair-eating lice. After the KND find out they don't like nacho cheese, they decide to shoot nacho cheese at them to get rid of them.
Harold allows a boy scout troop to come to the Lodge and educate the men about the outdoors. Red puts s device in his mailbox to prevent junk mail from getting through. Walter has trouble when he tries to split firewood. Red builds a loveseat that expands into a full sized couch. Red installs a manhole cover on his engine for making giant waffles.