On a spring afternoon in 1983, a young high school student discovers a correspondence between the 27 letters of the Greek alphabet and numbers. This will lead him to a persistent quest, resulting in the proof that the Greek language differs from other languages not only because of its originality, musicality, and mathematical structure but also because it contains encoded information, understanding the laws of cosmic creation and sciences, as well as the numerical values of mathematical constants.

In April 2013, during an excavation in Crotone, Southern Italy, a team of American archaeologists and other scientists discovers the ancient Pythagorean school. In the two underground levels of the excavation, the archaeological team uncovers some strange sculptures filled with encoded representations, containing mysterious combinations of various letters from the ancient Greek alphabet.

In their attempt to decode them, the three scientists of the mission discover a Greek mathematician, whom they believe has the ability to decode all these ancient puzzles. The leader of this scientific team is a mysterious American magnate, who will eventually bring the Greek mathematician to Crotone, and shortly after, a great struggle for the decoding of the inscriptions will begin, aiming to uncover the third underground level, where ancient secrets of utmost importance have been hidden for many centuries.