Unexplained incidents are occurring across the world’s oceans: whales are sinking ships, deep-sea crabs are invading shores, and mussels are immobilizing cargo vessels. An undiscovered ice worm is causing instability on oceanic continental slopes, leading to tsunamis. A lethal pathogen is contaminating drinking water from coastal areas, putting an increasing number of people at risk. In a desperate quest to uncover the reasons behind these baffling events, a diverse team of global scientists unites, ultimately confirming the existence of an unprecedented marine species with collective intelligence that is targeting humanity. Despite their findings, skepticism prevails, leaving the scientists to embark on a perilous mission alone. Their investigation takes them aboard a research vessel into the perpetual ice of the Arctic Ocean. This ecological thriller is adapted from Frank Schätzing’s internationally acclaimed novel and stands as the most costly German television production to date.