Logan Field, one of the survivors of the disaster in St. Louis now works for the government. He is supposed to be finding ways to discover and eliminate threats from other creatures like the PIasa Bird that killed thousands just a couple of years ago. Logan's friend and fellow survivor, Mike Quinton, is now back on the road and filming his TV show, but with renewed vigor now that the monsters are real.

 

Then, two kayakers go missing in Lake Superior, boats and people begin disappearing on the Great Lakes, and body parts start washing up on shore. Something else has awakened and this one lives in the water. Not only does it bite and destroy, but it somehow has the ability to create dangerous and deadly storms that can sink boats as big as the lake cargo ships.

 

Logan and Mike are thrown back into the mix, trying to stop a destructive force from ancient days thousands of years ago. Can they stop this creature before it kills as many, if not more than the Piasa Bird? Can anything stop a creature this powerful?

 

The indigenous tribes called it Mishipeshu. The white settlers called it the Underwater Panther. A creature with a catlike face, and a monstrous body. It ruled the water, and could create terrible storms.

 

Now it's loose. Only Logan Field has the background, the knowledge, to try and stop it.