Captains Courageous is a novel by Rudyard Kipling, that follows the adventures of fifteen-year-old Harvey Cheyne Jr., the spoiled son of a railroad tycoon, after he is saved from drowning by a Portuguese fisherman in the north Atlantic. The book's title comes from the ballad "Mary Ambree", which starts, "When captains courageous, whom death could not daunt". Kipling had previously used the same title for an article on businessmen as the new adventurers,...

A happy-go-lucky, waffle-loving narwhal and a cynical, no-nonsense jellyfish forge an unlikely friendship and share adventures while exploring the ocean together.

The crew of the Vengeance finds itself in a fight to save the world when it accidentally awakens the King of the Undersea who can control the dead.