Blue Planet - Red Tide

For thousands of years, an advanced alien civilization has lived hidden beneath Earth's oceans, watching humanity from the depths and choosing silence over war. But when pollution, dead zones, deep-sea mining, and collapsing marine ecosystems begin threatening their world, their patience finally ends. Across the globe, the ocean turns deadly—ships vanish, coastlines panic, red tides spread, and creatures rise from places humans were never meant to reach.

Marine scientist Dr. Trevor Steel and oceanographer-meteorologist Dr. Kayla Torres are pulled into a crisis no government fully understands and no military can control. As world leaders prepare for a war against an enemy they cannot find, Kayla and Trevor uncover the terrifying truth: this is not an invasion. It is a warning. To save humanity, they must convince the world that the ocean has never been empty—and now, it is answering back.