In a remote monastery in Germany, the members of the Apocalyptic Group—a circle of scientists led by their founder, Alexander—gather. They have dedicated their work to the search for the mysterious Ark of the Covenant. When a storm unearths an unexpected discovery near the monastery, their research takes a sudden turn, leading them across several continents and perhaps even through time. They meet new allies, follow ancient clues, and solve puzzles. But soon Alexander and his companions must realize that they are not the only ones on the trail of humanity's greatest secret—and that they can trust only a few.