This is probably the best quality DVD available of this PRC espionage thriller. Carradine and Naish are Nazi spies combing the San Francisco waterfront for a stolen code book, which also has the names of countless Nazi agents. They soon leave a trail of brutal killings and blackmail, with Carradine gunning down victim after victim lots of luger shootings. Probably Carradine's most ruthless portrayal. The final scene between him and Naish is most memorable. Way above average for the usual PRC thriller. Look for Lane Chandler in a bit part. 16mm.