Water was getting higher and higher as the ship was about to make port,but it never did,suddenly it came from beneath the sea or they did, a group of in fact unknown creatures entered the boat,they were slimey and fast,they look like snails without shells .

They then were many and then being many then too they could sink anything once together ,the ship sank with everyone on board but the creatures got away though.They were good swimmers or floaters they could never swim just floating or sinking once they stop swimming or floating . 
 

No one knew where they went or how deep either .
 

Then the  creatures lived in an abyss and deep inside of it too,No one could reach them there they were safe that is until one man wanted to know more anout ,a deep sea probe was sent to investigate them .But the creatures were smart too they just moved deeper into the abyss.
 

And  then they had attack again,nothing could stop them.Again they returned to the Abyss ,it seems too they could turn invisible as well. And thats why that no one could track them down on sonar or radar .

This time then after the attack a man just out of college had come up with better ways to detect invisible things or objects he wanted to see if  he could be able to detect any underwater activity that use invisible abilities like those of the creatures . He was going to test them out .

His name was then too Dr. Jeremy Reeves and his daughter were going to search for the creatures themselves and stop them .

end