Four marine biologists plan a deep ocean expedition.
Equipped with state-of-the-art submersibles and a mix of skepticism and excitement, the team begins their descent into the intriguing waters. As they travel deeper, the vibrant colors of the shallows gradually fade into an inky darkness, revealing eerie bioluminescent organisms that dance in the deep. Initially, their findings appear to align with expected phenomena-strange fish, deep-ocean coral structures, and colorful jellyfish, all of which fill them with wonder. However, as they continue their exploration, they encounter unexpected occurrences: strange magnetic fluctuations disrupt their equipment, and communications with their surface team begin to fail intermittently. Tensions rise as the group argues over the increasingly bizarre readings, which seem to move outside the realm of scientific explanation.