An accident on-board a deep-sea scientific laboratory has left you all alone, under the ocean, with a rapidly reducing amount of air, and with a small but widening hole in the hull. Find tools, get help from the Automated Robotic Helpers (ARHs), and search for the escape pod. Repair it. Fill it with enough oxygen and power for the journey to the surface. And finally, escape! Oh, and while you’re doing that, keep the oxygen levels up, keep the power working, patch that hole in the hull, and stop the ARHs malfunctioning. And above all - stay alive!