Diver Ulysses Vidal finds a fourteenth-century bronze bell of Templar origin buried under a reef off the Honduras coast. It turns out it's been lying there for more than one century, prior to Christopher Columbus's discovery of America. Driven by curiosity and a sense of adventure, he begins the search for the legendary treasure of the Order of The Temple. Together with a medieval history professor and a daring Mexican archeologist they travel through Spain, the Mali desert, the Caribbean Sea and the Mexican jungle. They face innumerable riddles and dangers, but in the end this search will uncover a much more important mystery. A secret, kept hidden for centuries, which could transform the history of humankind, and the way we understand the Universe.