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.

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.

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.

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.