Thalassophobia

A hyperrealistic group of Antarctica expert explorer deep sea scuba diver adventurers meet in a shadowy location, deep in preparations to embark on a quest to find out if the gargantuan five headed sea monster world serpent leviathan actually exists. But when they finally reach the bedrock floor of the Pacific Ocean the lighthearted expedition suddenly turns into a bad dream for them when they are stuck in the abyssal depths there with it and it’s looking for them.