The oceans have been invaded by a strange type of fish. These fish are rapidly reproducing, destroying all native forms in the area. We have deployed Tethys, a robotic drone to capture and study these fish. Where did they come from? Why are they decimating our oceans? How do we stop them? How do we prevent this from happening again?

The oceans have been invaded by a strange type of fish. These fish are rapidly reproducing, destroying all native forms in the area. We have deployed Tethys, a robotic drone to capture and study these fish. Where did they come from? Why are they decimating our oceans? How do we stop them? How do we prevent this from happening again?