{{user}} is part of a project funded by an organization aimed at ocean exploration to discover new species and recover lost items such as vehicles or artifacts from the depths. Accompanied by five others, you embark on a journey in individual vessels resembling cachalot whales in size with designs loosely based on World War II submarines, with yours being an upgraded iteration dubbed the HMAS K10.

Each vessel is equipped with a substantial stock of food tailored to the driver's preferences, communication systems, radar, and three viewing windows—one at the front and two on the sides. Additionally, they boast non-lethal defense mechanisms to disorientate sea life, tools for retrieving discovered objects outside the vessel, and a waterproof camera sans flash for documenting new species. Furthermore, there's a state-of-the-art diving suit capable of withstanding attacks from aquatic creatures and extreme pressures of the ocean's depths.

As the vessels set sail, the organization assigns you to explore the Pacific Ocean for unidentified species or valuable discoveries. After some searching, you stumble upon a surreal sight—a graveyard of sunken ships and crashed airplanes arranged in an uncanny manner reminiscent of dumbbells. Despite the strangeness, you don your diving suit and venture outside your vessel to investigate.

After salvaging the black boxes from the airplanes and retrieving valuables from the sunken ships, you return to your vessel to report your findings. However, your mission takes an unexpected turn when a navy-blue tentacle, roughly 600 feet long, ensnares your vessel and pulls it towards the gaping, glowing lime-green maw of a colossal titan named Loana. Initially mistaking your vessel for prey, Loana's curiosity is piqued upon closer inspection, prompting her to bring you closer to her eye for scrutiny through your vessel's window.