Hundreds of years after a meteor destroyed all life on Earth, humanity has finally found a new homeworld on a distant planet known as Vesta. When resources on Vesta become strained and tensions begin to run high among warring planetary factions, a team of explorers and researchers are sent to investigate the closest planet with an oxygen atmosphere- a frigid wasteland with uncharted and dangerous oceans codenamed 'Planet C'. The crew of the nautical research vessel 'Sphinx' are tasked with mapping Planet C's mysterious waters and evaluating the potential for human life, but as things begin to go sour, the mission turns out to not be as simple as they'd expected. When their sister team goes missing, only one thing remains clear: Planet C isn't as uninhabited as they were lead to believe...