An assassin prowls an archeological dig site.
An astronomer comes face-to-face with an ancient race.
A conspiracy resurfaces inside the walls of the National Museum.
High on the summit of Mount Whitaker, the Vatican employs the world's most advanced ground-based telescope. Night after night, the stars are scanned by hand-picked papal astronomers - researchers who know better than to share the secrets of their search.
But what are they looking for?
And more importantly, should the rest of us be worried?