323 The Grandstand Play pt1 (3/3/1971)
Lon Phillips leaves his baseball career behind to bring his developmentally challenged son to Hawaii in order to escape death threats on the mainland.
324 The Grandstand Play pt2 (3/10/1971)
The son of the baseball player becomes the vital witness in a murder, but he is reluctant to tell either his father or Five-O about the crime.
Cast: Jack Lord (Steve McGarrett), James MacArthur (Danny Williams), Zulu (Kono Kalakaua), Kam Fong (Chin Ho Kelly)
Guest stars: Pernell Roberts (Lon Phillips), Don Chastain (Lou Horton), Barry Atwater (Lester Workman), Elliott Street (Gary Phillips), Electra Gailas Fair (Emily Workman), Jock Mahoney (Coley Bennett), Josie Over (Horton's Girl), Tim Tindall (Holbrook), Sod Young (Lily Ahn), Tommy Fujiwara (Galvin)