When a former student is killed in Iraq, Harper remembers taking the troubled boy under his wing; Hanson learns that a student is selling test answers.

Henry finds himself suspended for hugging a student; when Hanson starts teaching driver education, he realizes how controlling he can be.

Although Danny loves his sister, he is torn because Claire is reluctant to relinquish custody of her daughter; Marla opens her home to a troubled student.

When 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.

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.

Rumors of hazing lead Guber to discover that the school drum line is abusing freshmen; Hanson's television station produces a documentary about Ronnie.

A student believes he is Jesus and uses school funds to feed the homeless; the return of Hanson's troubled sister compromises his first Christmas with his new family; Marla... Full summary

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.

Charlie Bixby (Dennis Miller) takes an unconventional approach when volunteering for a teen hot line; Marla decides to try in vitro fertilization and asks Harper to be the donor.

A student threatens to reveal Harper and Marilyn's relationship to the school board; Guber has trouble accepting the fact that Violet (Sherilyn Fenn) sees other men.