Mannion has to handle an international crisis after the son of the Colombian ambassador is discovered to be the main dealer of the heaviest type of heroine yet. Threatened not to do anything about it, Mannion studies the international code for diplomatic immunity and plays around until he gets Eduardo kicked out of school and arrested. Meanwhile, Temple helps a heroin addicted woman; Ella has problems with Ricky after he returns from summer camp; Jack Jr. goes to court for his drug problem and Nancy finds Jack a new assistant.

When one of Debreno's first cases solved under Mannion goes to trial, the defense uses Debreno's troubled professional and personal past to discredit him, implying that he set up the defendant in order to impress Mannion. Now, as Mannion questions Debreno's motives, he must also decide whether or not Debreno has a future as a part of his team.