Renko erupts in jealousy over Daryl Ann's business partner; LaRue takes an interest in a group of high school cheerleaders; Flaherty allows his feelings for Russo to interfere in a bust; Calletano returns to Hill Street when a Spanish-speaking citizen is shot by a cop unable to understand him; Goldblume hunts down wanted murderer Alfred Williams; Officer Kate McBride relives her father's death at an awards ceremony; Belker's routine undercover operation goes horribly wrong.