The Navy and OSS instructors assigned to teach him military explosives are amazed at his skill in the subject matter .
He is selected to join Cletus Frade 's team for his explosives knowledge , as one possible way to sink a suspected German submarine replenishment ship .
The Navy and OSS instructors assigned to teach Cletus Frade military explosives are amazed at Cletus Frade 's skill in the subject matter .
He is selected to join Cletus Frade 's team for his explosives knowledge , as one possible way to sink a suspected German submarine replenishment ship .