A 15-year-old girl, who Maxine previously placed in a foster home, tests positive for HIV; Amy finds out about a school dance Lauren doesn't want her to chaperone; Amy presides over a case where an Arab-American teenager is charged with assault; Maxine and Ignacio have an encounter of the romantic kind in Ignacio's home; Crystal arranges for Vincent to teach a creative writing class at a youth detention center. (thetvdb.com)