The Hardy Boys / Nancy Drew Mysteries

Season 2, Episode 20

Episode Title: Death Surf

Air Date: 1978-03-12

Overview:

While windsurfing in Hawaii, Frank tries to rescue a girl named Maryann (Maren Jensen) who disappears and is claimed to be dead. He then begins to become obsessed with finding out what happened to her, but someone, who is also on her trail, is watching him.