Four college students in search of extra credit in a biology class go into the Florida Everglades to conduct what they assume will be harmless research on the local wildlife. But their professor has ideas of his own, and he has created a giant mutant eel with razor-sharp teeth, the ability to survive on land and a taste for young human flesh. Now the students must team up with an outmatched sheriff to destroy a horrifying creature designed to be the ultimate killing machine....