The Code follows Professor Marcus Du Sautoy, who goes in the search for a mysterious code or set of numbers and shapes that govern how the world is run. Sautoy says that there are signs and numbers everywhere and his plan is to reveal the numbers and shapes that explain everything. In a three-part series, he looks at prime numbers and how they can explain the 13-year life cycle of the periodic cicada and how simple number ratios create cathedrals that are mirrored God's creation. By exploring the numbers, Sautoy also looks at how the radar that is used by air traffic controllers is of, how a number doesn't exist, the structure of the nautilus shell and how Newtons Law of Universal Gravitation is explained. / Each week, Sautoy reveals that numbers and patterns dominate our natural and physical world. He takes the viewers along for the ride and tells them where they can unlock TV and online clues so that they can help track down a unique mathematical prize hidden somewhere in the UK as well.