A cop finds a mysterious map from the Age of Exploration inside a stolen painting, and enlists the aid of his antiquarian brother to solve its riddles .A cop finds a mysterious map from the Age of Exploration inside a stolen painting, and enlists the aid of his antiquarian brother to solve its riddles .A cop finds a mysterious map from the Age of Exploration inside a stolen painting, and enlists the aid of his antiquarian brother to solve its riddles .