There is all kind of information about the Nazi in Argentina and Brazil. Even more interesting is the Nazi base at the Antarctic. I have never watched it but the series on History Chanel "Hunting Hitler" all takes place in South America. I have heard that it is extremely good. I think last year was the 2nd season. If you really what to go deeper search Youtube for - nazi bases in antartica. This is one of the best video on the subject but it is Russian so you will have to read the English subtitles. There are many others, Enjoy!