Aired: September 29, 1967 | Season: 3 | Episode: 4

Overview
Runtime: 60m
Directed by: Alan Crosland Jr.
Written by: Henry Sharp
Guest stars: Anthony Caruso, Chubby Johnson, Deborah Lee, Jonathan Hole, Lew Brown, Marty Koppenhafer, Michael Dunn, Peter Hale, Robert Ellenstein, Susan Oliver
Description
The agents travel to Hayes City they find a mysterious key with the body of their arch-nemesis, Dr. Loveless. While there, they meet up with Miguelito's next of kin, Dr. Liebknicht, a Swiss neurologist.