An evil scientist known as "Mr. M." uses a drug he has developed called "hypnotreme" to help steal submarine equipment. Federal agent Grant Farrell is dispatched to find the mysterious villain and stop his nefarious plans.
| Actor | Role |
|---|---|
 Edmund MacDonaldAnthony Waldron | Anthony Waldron |
 Pamela BlakeShirley Clinton | Shirley Clinton |
 Danny MortonDerek Lamont | Derek Lamont |
 Virginia BrissacCornelia Waldron | Cornelia Waldron |
 Joseph CrehanDan Blair | Dan Blair |
 Jack IngramWilliam Shrag | William Shrag |
 Dennis MooreAgent Grant Farrell | Agent Grant Farrell |
 Richard MartinDetective Lt. Kirby Walsh | Detective Lt. Kirby Walsh |
 Byron FoulgerWetherby | Wetherby |
 Jane RandolphMarina Lamont | Marina Lamont |
 William ChingJim Farrell | Jim Farrell |
| JJoe HaworthDonninger | Donninger |
| PPatricia AlphinMs. Buckley | Ms. Buckley |