A woman with car trouble whom Hanson helps out and makes a date with turns out to be a teacher who has been getting threatening messages and whose class he has been assigned to undercover.

Hanson and Penhall infiltrate an exclusive preppie clique to investigate a prank that left a girl dead.

Hoffs is not convinced that the captured suspect in an arson case at a Catholic girls school is the guilty party and believes that the real culprit will strike again at the school's prom.

Jenko is killed by a drunk driver and is replaced by Captain Fuller who has his hands full dealing with a vengeful gang leader whom has taken his principal and several others hostage, including an undercover Hanson.

Hanson who is out to catch a loan shark finds his cover threatened when his high school quiz team makes it to the semi finals which are to be broadcast on TV.