S1E11
Demon of the Deep
⚠ Spoiler alert This recap gives away what happens in this episode.
Episode Summary & Review
Aired 1967-11-11 on ABC.
Professor Gamma, a mad scientist mutated into a fish-man by the radioactive undersea rubble of what had been his base until it was destroyed by the Fantastic Four, seeks vengeance with his new-found powers as the Gamma Ray.