Ant and Fontaine hunt for one of the rarest ocean creatures, the colossal squid. But it turns out to be smarter than anyone thought and thinks the Nektons look tasty! Can the Aronnax survive being pulled down very, very deep?

Does a ghost sub haunt the ocean depths? Ant believes it does, but when he actually finds this "ghost sub", the truth is even stranger and much more dangerous. Ant and Fontaine find themselves trapped, by a ghost?