Hidden beneath the Atlantic’s deep waters lie structures, lost cities, and clues that could rewrite what we know about Earth’s history, and challenge our understanding of the ancient world. Yet with more than 75% of its seafloor still unmapped, the Atlantic Ocean remains one of the least explored places on the planet. 

From sonar scans revealing geometric formations, like the Bimini road, beneath the waves, to vanished ships, underwater cities, and unexplained regions like the Bermuda Triangle, the Atlantic has become more than an ocean of currents and depth. Stories of lost civilizations, sunken continents, like Atlantis, and mysterious discoveries have only deepened the mystery. 

There are also the unexplained sonar/UFO reports in the Atlantic. These reports involve military sonar, classified data, unidentified underwater contacts and objects that apparently move in unusual ways.  

Given the numerous reports of UFOs emerging from and diving into the ocean, it is not unreasonable to speculate that ancient intelligent (extraterrestrial) civilizations could still be inhabiting hidden underwater bases deep beneath the Atlantic Ocean to this day. 

In this documentary, we explore what has been found in this ocean, the stories passed down through history, and how they may connect to what lies below the surface. We’ll examine the myths, the discoveries, and what makes it Earth’s most mysterious ocean.