On their first day on the planet Leviathan, the colonists thought they had pulled out a lucky ticket. The landing went flawlessly, everyone survived, and this planet has only one catch... There is no land on Leviathan. At all. Only water - and countless monsters hiding in it. A hundred years later, the “Northern Crown” is sent to this planet. The mission on Leviathan is considered simple, and no one even suspects that the water world will take one of the crew members forever.