Netflix series ‘Below’ concludes with creature revelations and conspiracy

The first season of the Netflix series ‘Below’ concludes with the revelation that the mysterious marine creature, known as the ‘Mudder’, is a highly intelligent giant cephalopod acting to protect its eggs trapped in an iceberg. Biologist Fonda Howander discovers that rising water temperatures threaten the offspring, triggering the creature's aggressive defensive behavior.

The series also clarifies that the population's symptoms were caused by mucus released by the creature, which contaminated the water supply and induced insatiable thirst.

While the creature poses a physical threat, the narrative identifies the Crocker family as the primary antagonists. They orchestrated a conspiracy to seize control of Snook’s Arm to exploit copper and cobalt deposits, manipulating local votes and military operations to facilitate their economic interests.