Jonny Quest (1964)

S1E14 Dragons of Ashida

Title: Dragons of Ashida Plot: While in Japan, Dr. Quest reunites with an old colleague from his biologist days, only to discover that the man has lost his sanity. Obsessed with his twisted vision, the former friend is now cultivating massive, predatory lizards designed to stalk and hunt humans. As Dr. Quest uncovers this chilling scheme, he must confront the dangers posed by these monstrous creatures and stop his friend before it's too late.