Caden Bosch is aboard a ship that will take him to the deepest and most mysterious place on Earth: the Marianas Trench. He is a brilliant student who does not act like others his age. His friends have begun to avoid him. The captain names Caden artist in residence and asks him to document the journey. Caden pretends to join the track team, but he spends most of his time lost in his thoughts. His two oldest buddies believe he has gone crazy. He will have to dive into the most remote part of his brain in order to stay afloat.