Intrepid young reporter, Tintin, and his loyal dog, Snowy, are thrust into a world of high adventure when they discover a ship carrying an explosive secret. As Tintin is drawn into a centuries-old mystery, Ivan Ivanovitch Sakharine suspects him of stealing a priceless treasure. Tintin and Snowy, with the help of salty, cantankerous Captain Haddock and bumbling detectives, Thompson and Thomson, travel half the world, one step ahead of their enemies, as Tintin endeavors to find the Unicorn, a sunken ship that may hold a vast fortune, but also an ancient curse.
After the death of Captain Thémistocle Paparanic, Captain Haddock's old friend, he inherits a ship called the Golden Fleece. Once Tintin and the captain arrive in Istanbul, where the ship is anchored, they meet Mr. Karabine, a businessman who stubbornly insists on buying it even though it is in a dilapidated state.
Tintin is sent to guard Professor Calculus, who has invented a machine that can duplicate anything, and is staying in a village near the border of Syldavia and Bodouria. Rastapopoulous, an infamous and ruthless international criminal, tries to lure Calculus and Tintin away by kidnapping two children, who live nearby, in order to get his clutches on the machine.
When seven archaeologists find an ancient Inca temple, they become victims of an ancient curse. Back in Europe, one by one they fall into a deep sleep and only once a day, all at the same time, they wake up for a few minutes and experience hallucinations where the sinister living mummy of Rascar Capac appears.
Professor Calculus's friend develops a blue-skinned orange that can grow on any kind of land and survive harsh weather (in the manner of Lue Gim Gong) and therefore solve world hunger. The Professor and his friends, however, run afoul of gangsters who also covet the fruit. The adventure takes them from their home in Marlinspike Hall (Moulinsart), a fictional mansion that is presumably in Belgium, to Spain, where Calculus and another scientist are kidnapped.
While on vacation in Egypt, Tintin encounters an eccentric archaeologist who believes to have found the whereabouts of Pharaoh Kih-Oskh's tomb. Tintin finds there a cigar marked with a strange emblem.
Tintin and Captain Haddock search for Red Rackham's treasure with the help of an eccentric but lovable professor.
Tintin and Captain Haddock travel to Peru in search of an abducted friend.
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.
An absent-minded sigillographer gets Tintin involved in a dangerous political intrigue in the Balkan nation of Syldavia.
Tintin and his friends get involved in an unexpected and weird adventure when they meet Laszlo Carreidas, an eccentric millionaire.
Tintin and Captain Haddock travel to Tibet in search of an old friend who has disappeared after a plane crash.
Tintin is out on a peaceful walk. But the comfortable atmosphere will not last long. When an aircraft with an engine failure lands, Tintin does his part to help, but he is shot and ends up in hospital.
Tintin falls into a dangerous trap after his friends are falsely arrested in a troubled South American country where a revolution is about to explode.
Tintin and his friends travel to Khemed, a Middle East nation, to help its ruler, Emir Mohammed ben Kalish Ezab, who gets into trouble when Bab El Ehr, an arms smuggler and terrorist, rises and takes over.
When a South American fetish is stolen and then reappears the next morning, Tintin investigates.
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.
Strange things are happening in the evening at the mansion. Glass things break without any apparent reason. The Professor, somewhat apathetic to the whole series of events, leaves the following day to attend a conference on nuclear physics in Geneva. Foreign powers get wind of the Professor's work and send their agents to investigate.
Tintin and his friends investigate when something ominous haunts seven archaeologists, just after their return from an ethnographic expedition to the Andes, where they have dug up the tomb of Inca Rascar Capac.
The opera diva Bianca Castafiore spends a few days with Tintin and his friends at Marlinspike Hall, where a mysterious theft is perpetrated.
