Somebody call Tom Hanks, we may have an idea for a sequel.

He's busted codes involving some of our world's greatest treasures. Dealt with some of our scariest global terrorists. The next mission for Robert Langdon, best-selling author Dan Brown's adventurer extraordinaire? Television. Per Variety, NBC has bought the pilot to a potential Robert Langdon-centered adventure series. The title? Very simply, Langdon. We've seen Langdon on the screen before, in three films starring Tom Hanks as the title character, directed by Ron Howard: The Da Vinci Code, Angels & Demons, and Inferno. The NBC version of the character will be based on Brown's novel The …