Here ya go...the short version: While in Paris on business, Harvard "symbologist" Robert Langdon (Tom Hanks) receives an urgent late-night phone call: the elderly curator of the Louvre has been murdered inside the museum. Near the body, police have found a baffling cipher. While working to solve the enigmatic riddle, Langdon is stunned to discover it leads to a trail of clues hidden in the works of Da Vinci -- clues visible for all to see -- yet ingeniously disguised by the painter. Langdon joins forces with a gifted French cryptologist, Sophie Neveu,(!!) and learns the late curator was involved in the Priory of Sion --an actual secret society whose members included Sir Isaac Newton, Botticelli, Victor Hugo, and Da Vinci, among others. In a breathless (huff huff, puff, puff) race through Paris, London, and beyond, Langdon and Neveu match wits with a faceless powerbroker who seems to anticipate their every move!!!! Unless Langdon and Neveu can decipher the labyrinthine puzzle in time, the Priory's ancient secret -- and an explosive historical truth -- will be lost forever. That's about it without spoiling the ending for ya. :)

basically, jesus and mary magdelen were married and had a child, the holy grail is not the cup that jesus drank from in the last supper, it is the blood-line of christ.