Echoes of Atlantis

In archaeological circles, the Antikythera Mechanism is renowned as history's first analog computer. What no one knows is that this artifact is merely one gear out of three. When marine archaeologist Elena Vance discovers the second piece in a shipwreck within the Aegean Sea, she inadvertently triggers an electromagnetic pulse that awakens ancient technology at three distinct points across the globe. Now, she is in a race against time against a paramilitary corporation (The Circle of Ash) that seeks the final piece to control the global energy grid that destroyed the original civilization.