Maxim Gunn and the Stolen Waters

Was there really such a place as Atlantis? And was there a super race ahead of its time, or something so different we wouldn't want to know?
Trapped for millennia until a submarine earthquake frees them, a few survivors emerge on a mission of revenge against the “Dry Landers” whom they blame for the Great Catastrophe.
Gunn and Sergeant Magoon are in a desperate fight to stop them.