Season
Episodes
Episode 1
Disturbing events in the world's oceans alarm scientists around the globe, launching an investigation into a mysterious threat to humanity's fragile existence.
Episode 2
As bizarre occurrences continue to unfold around the world, scientists scramble to find the source of mysterious deaths and phenomena endangering humanity.
Episode 3
While Venice suffers an unprecedented plague of jellyfish, it's discovered that a mutated bacterium is the cause of a growing number of deaths on the coasts.
Episode 4
Political leaders grow skeptical about the dramatic situation on the French Atlantic coast, while the ice worms on the sea bed continue to spread.
Episode 5
Dr. Cécile Roche detects in crabs that have overrun coasts around the world the same bacterium that entered drinking water on the French coast via infected lobsters.
Episode 6
Johanson suspects that an unknown marine intelligence, which he calls Yrr, is behind the strange happenings, and wants to contact the life form.
Episode 7
The expedition to study the Yrr sets out for the Arctic, where a large number of Yrr signals were spotted.
Episode 8
With humanity's future at stake, the team butts heads on what to do. In a desperate situation, a radical decision is made.
Cast
Alexander Karim
Dr. Sigur Johanson
Cécile de France
Dr. Cécile Roche
Leonie Benesch
Charlie Wagner
Joshua Odjick
Leon Anawak
Takehiro Hira
Riku Sato
Krista Kosonen
Tina Lund
Rosabell Laurenti Sellers
Alicia Delaware
Barbara Sukowa
Prof. Katherina Lehmann
Oliver Masucci
Jasper Alban
Klaas Heufer-Umlauf
Luther Roscovitz
Lydia Wilson
Sara Thompson
Takuya Kimura
Aito Mifune