Tintin and Captain Haddock travel to Tibet in search of an old friend who has disappeared after a plane crash.
Tintin and Captain Haddock search for Red Rackham's treasure with the help of an eccentric but lovable professor.
Tintin buys an old model ship at a flea market as a gift for Captain Haddock, who tells him about the exploits of a famous ancestor related to it. Then, Tintin learns that it is not an ordinary model ship.