New teachers join the faculty; Lipschultz gets into trouble after giving a student the wrong name; Marla sponsors a club of female students.

Ronnie begins her teaching career at Winslow High; Lauren tries to help a pregnant, straight-A student gain admission to Princeton.

Senate is outraged when he learns that a prized student purchased a college-application essay over the Internet. Hanson's class decides to sue Lipschultz in court for defamation of character after he calls a student a derogatory term.

Harper's headstrong daughter Brooke enrolls at Winslow High after she is kicked out of private school. Meanwhile, when Ronnie is disappointed that her class is not learning Shakespeare, her ex-suitor Matthew Baskin, who continues to pursue her, offers a unique way to reach her and her students.

Hanson is arrested after a domestic dispute, causing Harper to seriously consider firing him. Lauren is skeptical when a student decides to drop out because a record company wants to sign her, and Harper is livid when he discovers that someone close to him has been anonymously dispensing sex advice in the student newspaper.

A statutory-rape case entangles Ronnie with the enraged parents of the 15-year-old victim; an illicit-drug situation embroils Harper with his unsettled daughter

Harper reunites with his ex-wife at a holiday benefit; students ask Louisa, Marilyn and Marla to perform at the pageant; Senate stays mum about a student's tragic secret so that the boy's family can enjoy Christmas.

A revelation concerning Jeremy fractures the relationship between his mother and Guber; a plea from a death-row inmate troubles Harper; a student's ADD affliction disquiets Ronnie.

Tensions escalate among Meredith, Jeremy and Guber, who seek family counseling; controversy swirls around a student's class-project photo and a speech by Lipschultz.

Guber accepts Lauren's offer of a platonic date; Ronnie confronts a student about her pregnancy; Hanson helps his students cope with the aftermath of the terrorist attacks.

Harper gets steamed when he finds out his daughter is dating a 27-year-old man; Guber and Senate's students get ready to rumble in a debate.

The faculty decide to have a staff talent show to lighten the mood at Winslow. Lipschultz asks Ronnie to sing a duet with him at the talent show but she convinces him that Marylin is just waiting to be asked. Meanwhile Danny befriends one of his Cerebral Palsey kids and arranges for him to attend Winslow. The mood is severely challenged when a student finds a notebook with plans for a bombing and shooting spree at Winslow

A student's illness rattles Senate, who's haunted by feelings of futility; a teen's eating disorder upsets Lauren, who's also unnerved by an web site advocating anorexia.

The students and teachers at Winslow High School deal with the tragedy of a car accident caused by a drunken driver; Senate tries to convince a man to keep his son in school; Marla and Meredith clash over teaching methods.

Controversy strikes Hanson's classroom over a reviled racial epithet; Ronnie draws ire for a class assignment to experience life as a homeless person.

Ronnie tries to persuade an 18-year-old student not to pose for a racy magazine; Guber and Meredith disagree about a classroom incident; Lauren and Marylin are questioned about their teaching methods.

Ronnie catches a student performing a crime; two female students tell Marylin about their sexual conversations online with an older man.

Former student Dana Poole returns to Winslow, hoping to spend time with Senate for a class project; Lipschultz is confronted by a man who claims to be his son.

Ronnie invites high-school staffers to a surprise birthday party for Senate at her apartment, but he shocks everybody by showing up with a former student.

As the prom approaches, female students outrage the faculty when they auction themselves as dates, while Harper deals with angry students who oppose his allowing a gay student to compete for the queen's crown.

One of Senate's most promising students and his brother become entangled in criminal acts with fatal results; Hanson draws criticism for sending a letter to a girl's parents because she is overweight.

Staff and students at Winslow High struggle to get on with their lives after a number of tragic events.

Young teachers join the faculty; students plan a walkout because of the administration's apparent lack of concern for student issues.

Harsh echoes resound from the student riot; the Danny-Marla confrontations lead to racist allegations against her; a drug deal entraps one of Guber's prized pupils.

Misconduct charges target Guber, who's up against a new superintendent; race issues fester between Marla and Danny; reckless student driving sparks reproach.

A sex scandal among teens rocks Winslow and prompts a mock trial of the accused instigator, a clean-cut senior who's defended, prosecuted and judged by his peers.

Senate's erratic behavior rattles Ronnie and prompts a telling showdown with Harper; pupil misconduct provokes a new teacher, whose youth belies grit.

Harper's meeting with a parent becomes heated; a new teacher stirs things up in the classroom; the teachers must evaluate one another.

A jailed Harper faces a manslaughter charge in the death of a student's father; a rebellious teen receives unsolicited help from Hanson, who uncovers the youth's dark secret.

Brooke feels guilty about leaving her father alone during the holidays; Lipschultz debates accepting his son's Christmas invitation; Marla and Kimberly are stranded at Doyle's during a snowstorm.

A teen's pregnancy sensitizes Guber; a gang slaying deeply affects Kimberly and her prize student; romantic liaisons have differing impacts on Ronnie and Hanson.

Harper has concerns about Brooke's infatuation with the star basketball player; Flynn is attracted to a student's mother; a boy enters an online auction to buy a night with a beautiful girl.

A star basketball player is on the verge of losing his eligibility to play; Becky tells Flynn her mother is having an affair.

Guber's speech team star has an issue, Russell decides on a college, while mixed signals rattle Colin as his affair comes to a close.

Kimberly is stalked by one of her students; Lipschultz celebrates Valentine's Day with Guber's mother.

A shy student with a powerful voice belts out a song; Hanson tries to help a 12-year-old genius who has no friends.

Marla berates Aisha and the other performers in the school musical; the incumbent mayor grills Harper about low test scores; students land a juicy story about a teacher for their news broadcast.

Hanson's troubled sister drops off her 4-year-old daughter for him to watch; Marylin urges Aisha to stand up to her boyfriend; Ronnie and Marla vie for the position of assistant principal.

Tensions surface over Ronnie's new post; Aisha's participation in the school musical and her relationship with J.T.; Harvey's required recertification; and Danny's care for his niece.

Courtroom drama energizes Ronnie, who's defending two teens in a murder arraignment; high test scores by poor students prompt Guber's undercover investigation.

Sudden fame heartens Ronnie, credited for high exam scores posted at Winslow, yet she's also facing a romantic crisis with Zach; a student-council election tests a shy, awkward teen.

Aisha's ailing father leaves a song manuscript in her possession, and she writes lyrics for the melody.

Hanson asks Claire to marry him; a student uses rap music to critique Shakespeare; a producer pushes Aisha to sign a record deal; Lifehouse performs at Doyle's Bar.

A student writes a letter to Whitney Houston asking her to attend the prom with him; Harper tries to prevent teachers from being fired for budgetary reasons; Danny asks Claire's father for permission to marry her.

Ronnie witnesses an attempted rape, then receives a shock when she presses for legal action on behalf of the victim (guest star Amanda Fuller); Hanson tries to prevent a student from being expelled for drugs.

After a cheerleader is attacked, blame falls on another student's mother (Sean Young); Carmen goes head to head with a ""bad boy"" student (Milo Ventigmilia); Hansen copes with a student who says he is the son of God.

A female student files a serious sexual-harassment charge against Danny; a classroom debate over the U.S. involvement in Iraq turns violent; the tension between Harper and Guber over Marylin reaches the boiling point.

An enraged student slaps Marla's face in front of the class, and Marla slaps her back; Hanson discovers Allison behaves like a bully at school; Carmen asks Harper to remove Jake from her class.

An investment banker, convicted of securities fraud, avoids jail time by agreeing to community service: teaching math at Winslow High. A sexy and eccentric woman smashes into Guber's car and then crashes her way into his life.

A student discovers Harper and Marilyn have been secretly dating and threatens to go to the school board; Hanson and Claire try to assist a student who is having trouble with his dad.

Charlie Bixby (Dennis Miller) takes an unconventional approach when volunteering at a teen hotline; Marla decides to try in vitro fertilization and asks Harper to be the donor; Carmen reveals a secret from her past.

Harper decides to call the FBI when he learns that a student has been accessing a terrorist recruitment web site from the school library; Ronnie learns that one of her students has HIV.

Guber contends with a student who thinks he is Jesus and is using school funds to feed the homeless; Marla mistakenly books R.E.M. for a school fund-raiser.

Guber discovers the high-school drum line's freshman hazing involves physical abuse; a student-produced TV documentary about Ronnie worries her; a father is sentenced to being handcuffed to his son for a week.

An overachieving student sues the school when she has to share presidency of the honor society with a black student in a wheelchair; Marlo begins her in-vitro process.

Views on affirmative action divide the students; the teachers hope to quell the resulting tensions by debating the subject in front of the student body.

Henry gives bad advice to a brainiac student who wants to become an artist; Marla has a miscarriage; Rainy is thrown out of her foster home.

A former student of Winslow High dies in Iraq while serving the U.S. Army. Principal Harper receives a letter from the deceased student which brings back old memories back to the days when he took care of him and pulled him away from a life in the gutter. Danny Hanson struggles with a student in his class who's been hacking into the school's computer base; finding out about the teachers' private lives and upcoming tests.

Ronnie catches a male teacher hugging a female student; Hanson worries that he may be a control freak following an incident in his Drivers' Education class; several students are caught photographing themselves nude with only words written across their bodies.