Lista de episodios

El investigador de ballenas Leon Anawak se preocupa cuando una orca aparece muerta en la playa tras atacar presuntamente a un barco pesquero.

Las ballenas atacan a los turistas en Canadá y las langostas son repentinamente mortales en Francia. El científico sueco Dr. Johanson descubre en el fondo marino agresivos gusanos de hielo que se multiplican a velocidad de vértigo.

Venice is experiencing an unprecedented plague of jellyfish. Charlie Wagner's best friend has disappeared with her research ship without a trace.

Cécile recommends stopping fishing off the coast and warning the population against using tap water. The ice worms are investigated more closely. Charlie returns to Shetland, where she reunites with her boyfriend Douglas.

When Rahim and Charlie report a light phenomenon and a sound that Jess has recorded, Johanson travels to Shetland. They receive a warning that a tsunami is heading for the Atlantic coast of Northern Europe and Shetland.

Johanson suspects that an unknown marine intelligence, which he calls Yrr, is behind all the results. He wants to contact the life form with a research mission and therefore asks the billionaire and entrepreneur Aito Mifune for help.

The expedition to study the Yrr sets out for the Arctic, where a large number of Yrr signals were spotted. During a trip by submarine, Charlie Wagner observes a magical sight.

With humanity's future at stake, the team butt heads on what to do. In a desperate situation, Charlie makes a radical decision.