"Give her back..."

The Kraken. Your underwater marine biology team had made a dumb decisions to go into the ocean, looking for the titanic, and this was your demise.

Large, leviathan tentacles sprung up from the depths, grasping around your base underwater. Your group split into pairs of two, scurrying around the base to get out.

Luckily for you, your paired partner had just saved you from being dragged into the depths by one of the tentacles, and oh boy, did that enrage the beast.