Three explorers, including a professor and his son, are betrayed by their ship's crew while searching for the lost world of Atlantis. After their diving bell is destroyed, they're attacked by a sea monster and dragged to the ocean floor, where they meet an advanced alien race. The aliens, who want to create a Nazi state on Earth, believe the professor's son may join them due to his high IQ. The team must work with a slave's daughter to escape the city and its deadly creatures.

Warlords of the Deep
Explorers of the deep ocean make a groundbreaking discovery when they find the legendary city of Atlantis, but their excitement is short-lived as they soon find themselves in a fierce battle against a superior alien force and terrifying sea creatures, fighting to stay alive.