Amadeus is a small Punker living in a trash can. One day he has got the idea to participate in a punk concert in front of the Brandenburger Tor and convinces his friends to found a band. But still they have no instruments and thus have to gain some money. Meanwhile the eager police officer Herr Schulze is out to chase punks in Berlin and is about to interfere with Amadeus' plans...

Tintin finds himself involved in a mystery related to a drowned man, a can of crabmeat and a ship called Karaboudjan. After investigating the ship, Tintin discovers that the shipment of cans does not contain exactly crabmeat.

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.

Tintin and Captain Haddock search for Red Rackham's treasure with the help of an eccentric but lovable professor.