In a mansion inherited from his uncle, a famous scientist, Lieutenant Colonel John Halliday discovers a medieval sword. That same night, an unknown criminal tries to steal the find, and the house burns to the ground. Intrigued, Holliday decides to examine the sword and discovers an ancient code in the hilt. Obviously, the Knights Templar, anticipating the defeat of the Order, hid part of their famous treasures in a safe hiding place. But where exactly? Holliday, along with his journalist cousin, the charming Peggy Blackstock, embarks on a dangerous journey. However, not only they are hunting for the treasure, but also the intelligence services of various powers, as well as the mysterious organization “New Templars.”