- Sadistic Stephen Danel owns a penal island, and when he is not humiliating and mistreating his wife, he is torturing his convict prisoners and using them for slave labor. Government agent Mark Sheldon is sent to infiltrate the island and bring Danel to justice. Written by Ken Yousten {kyousten@bev.net} (imdb)
- An edited version of the 1940 Republic serial "Mysterious Doctor Satan", which was released to TV in a syndication package in 1966.
