Below finale reveals truth about mysterious sea creature

Netflix’s Below, starring Josh Hartnett, has concluded its six-episode run with a major revelation about the mysterious sea creature threatening a coastal community. The finale brings the central storyline to a close while leaving viewers wondering whether the story could continue in a second season.

Created by Jesse McKeown, the science fiction thriller combines mystery, family drama and environmental concerns. Its final episode reveals the truth behind the creature’s behaviour and gives the main characters a chance to confront their fears. However, the closing scenes suggest that the danger facing the community may be only one part of a much larger mystery.

What happens in Below?

The series follows Calvin Penney, played by Hartnett, a Newfoundland fisherman struggling with the emotional impact of his father’s mysterious death. Living in a close-knit coastal community, Calvin is already dealing with personal difficulties when an unusual sea creature begins threatening the people around him.

As fear spreads through the community, Calvin joins forces with a visiting marine researcher to investigate the creature and understand why it has appeared in the area. Their investigation gradually reveals that the situation is more complicated than anyone initially expected.

Rather than being an ordinary sea monster attacking people without reason, the creature has a powerful motivation behind its actions. This discovery changes Calvin’s understanding of the threat and forces him to reconsider how the community should respond.

The major revelation in the final

The biggest surprise comes when the mysterious creature is revealed to be a giant squid mother protecting its eggs, which are trapped inside an iceberg.

The revelation provides an explanation for the creature’s behaviour throughout the series. Instead of acting purely out of aggression, it has been trying to protect its offspring from danger.

The situation becomes increasingly serious when a military attack threatens the creature. Calvin and his family decide to help move the iceberg into deeper waters, giving the giant squid a chance to survive.

Their decision places them in a difficult position, but it also demonstrates how much Calvin has changed during his journey. He begins to understand the creature’s determination to protect its family because he recognises the same instinct in himself.

By helping the creature, Calvin also takes an important step towards confronting his own past. His experience allows him to see the situation from a different perspective, connecting the series’ central mystery with its wider themes of family, loss and survival.

Why does Below end with a mystery?

Although the main conflict reaches a resolution, the final scenes introduce another question. As the story closes, viewers see more icebergs scattered across the sea, suggesting that other mysterious creatures could still exist in unexplored waters.

This image expands the possibilities of the series’ fictional world without confirming what might happen next. It also reinforces the idea that humans do not fully understand the environment around them.

The ending connects the supernatural mystery with concerns about climate change and its potential consequences. Changes in the environment could reveal things that have remained hidden for years, creating unexpected challenges for vulnerable coastal communities.

Rather than explaining every detail, the series leaves viewers to consider how much remains unknown beneath the ocean’s surface.

Will Below return for season 2?

Despite the unanswered questions, Netflix has not announced a second season of Below.

McKeown has indicated that the story was designed to work as a complete six-episode experience. Although he has not completely ruled out the possibility of revisiting the characters, continuing the series is not currently his primary intention.

Executive producer Jessica Rhoades has also emphasised the team’s focus on delivering the strongest possible story within the limited episode count.

The creative approach suggests that the production team wanted to give viewers a satisfying conclusion rather than depend on a second season to resolve the main storyline.

For now, Below stands as a complete limited series. Its finale answers the central question surrounding the giant squid while leaving room for viewers to imagine what else might be hiding beyond the characters’ understanding.

Whether or not the series returns, its closing moments leave a lasting message about protecting family, respecting nature and recognising the uncertainty of a changing world.