2. Episode 2

As bizarre occurrences continue to unfold around the world, scientists scramble to find the source of mysterious deaths and phenomena endangering humanity.

3. 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.

4. 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.

5. 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.

6. 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.

7. Episode 7

The expedition to study the Yrr sets out for the Arctic, where a large number of Yrr signals were spotted.

8. 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.