Operación Úrsula. El misterio del submarino C-3 (2006)

A missing submarine in Spanish Civil War leads to the first German Navy operation before WW2. Republican submarine C-3 was the victim of international secrecy and intrigues, after a torpedo from U-34 sunk it on December 12th 1936.

Unfortunately the movie Operación Úrsula. El misterio del submarino C-3 is not yet available on HBO Max.