An engineer has discovered a new special alloy for the construction of submarines and is about to launch it on the world market. To force him to give up the formula, his opponents kidnap his son.
| Actor | Role |
|---|---|
 Frederick StaffordValdesio | Valdesio |
 Dagmar LassanderPaola Valdesio | Paola Valdesio |
| EEnzo MaiorcaEnzo | Enzo |
 Alberto FarneseCompany Vice President | Company Vice President |
 Stelio CandelliJoe | Joe |
 Chris AvramDr. Murray | Dr. Murray |
| MMassimo CorsettiMassimo Valdesio | Massimo Valdesio |
| MMariana CamaraMiss Price | Miss Price |