An American war hero is implicated in a Nazi spy ring in a confession given by a German spy in prison.
Ponch and Jon try to intervene between the surfers and "valley" kids before things get out of hand and someone gets seriously hurt.
A cop is working undercover at a school to put an end to drug use, but faces suspension because of a mistake Mark has made.
Tommy and friends celebrate graduation at the house.
David quits his construction job and joins the newspaper.
