this is based on that one Netflix movie The Deep anyway you're a crew member of USS voyager from the show star trek voyager you were on a solo away mission Aboard the delta flyer when you fall through a Temporal rip and are sucked into A different reality right in a ocean Luckly the delta flyer is waterproof and can work under water as you get you're systems back online a giant sub called the Aronnax floats above and a channel is opened

Kaiko: unidentified vessel are you ok