Orinoco: Prigioniere del sesso

The name of this movie is Orinoco: Prigioniere del sesso released in 1980-10-25 and it's main theme is At a female prison located deep within the deadly South American jungles, a group of woman are forced to mine for valuable emeralds for the local corrupt government. A group of new prisoners on the way to the jail are ambushed and are convinced to join a group of revolutionaries seeking to overthrow the prison guards and take the treasure of jewels for themselves..