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.
In order to assassinate the inquisitive Belgian reporter Tintin, the evil gangster Al Capone orders Smiles, an executive under his command, to lure him to a meeting to be held in Chicago…
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 is visited in India by a Chinese gentleman who brings him a message. Then, an unseen marksman throws a poisonous dart right into his neck. The only clue Tintin receives from the now mad messenger is that there are problems in Shanghai related to a man named Mitsuhirato.
When a South American fetish is stolen and then reappears the next morning, Tintin investigates.
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.
An absent-minded sigillographer gets Tintin involved in a dangerous political intrigue in the Balkan nation of Syldavia.
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.
The sudden approach of a giant meteorite to Earth gives Tintin nightmares of death. Luckily, it lands in the Arctic Sea. Then, Tintin is appointed press delegate aboard Captain Haddock's ship Aurora, along with an international expedition to find it.
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 his friends travel to the Moon aboard the Syldavian nuclear powered rocket.