DEEP IN THE OCEAN, A SECRET WORLD AWAITS … Kaya, raised in the oceanic, high-tech world of Atlantis, has always been fascinated by the legends about life above the water. Despite her father’s insistence that they’re only stories, she can’t help but dream about the Sun People. When a group of shadowy officials known as Erasers moves to bury those legends for good, Kaya sets out to the surface to uncover the truth once and for all. In the world above, where climate change and mysterious tsunamis threaten life on the surface, all Lewis wants is to spend more time with his scientist father. But when he stows away on his dad’s top-secret research trip, he finds himself thrown headfirst into an adventure much bigger than he bargained for.