Code:

http://www.imdb.com/title/tt2060305/

The Code is a mathematics-based documentary for BBC Two presented by Marcus du Sautoy, beginning on 27 July 2011. Each episode covers a different branch of mathematics. As well as being a documentary, The Code is also a series of online challenges forming a treasure hunt, with clues to finding the treasure being included in the episodes, online games and other challenges

Code:

http://safelinking.net/UCmnKsr