Wealthy Sportsman Harley Bernard would like to know who murdered his stable manager. At first Gunn suspects Frank Rousseau, a gangster who once tried to get Wally to fix a race. The next suspect is a seven-foot giant who tries to strangle Gunn. After being rescued by Lt. Jacoby, Gunn visits TV exercise personality Jack LaLanne who identifies the tall man as the ""Great Gorza.""
