Underwater Expedition Goes Wrong

A team of brave explorers embark on a dangerous expedition through uncharted waters. Once the swimming pool of a now extinct race of giants, the place is now a desolate murky abyss. But no sooner has their expedition started than they are met with the unthinkable: a real, living giantess! They submerge their vessel to stay under her radar but while they know they should flee as far as their sub will get them, they are strangely lured towards her leviathan body. Like a siren of the deep, something about her pulls them in and the explorers can't help but get too close. One fateful miscalculation and their submarine is plunged deep into her cleavage, alerting the giantess. She tears their ship from the water and begins her asault, crushing the sub in her huge maw, shaking it until it's occupants are emptied out into the waters, trampling and crushing it before discarding it and beginning the hunt. They are powerless to escape the giant predator, now alone and sc