The Swarm
S01:E04 - Episode 4
S01:E01 - Episode 1
Disturbing events in the world's oceans alarm scientists around the globe, launching an investigation into a mysterious threat.
S01:E02 - Episode 2
As bizarre occurrences continue to unfold around the world, scientists scramble to find the source of mysterious deaths.
S01:E03 - 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.
S01:E04 - 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.
S01:E05 - Episode 5
A tsunami is heading for the Atlantic coast of Northern Europe and Shetland.
S01:E06 - 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.
S01:E07 - Episode 7
The expedition to study the Yrr sets out for the Arctic, where a large number of Yrr signals were spotted.
S01:E08 - 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.