Mrs. Blijleven reports all her prized pink possessions have been stolen. The police sergeant assigns the case to constable Anton, who passes it on to the Xmix game characters trio. Hearing the robbery happened while she was on a dream date -who didn't show up- arranged by Luciano's dating agency, they smell a rat and set a trap.
The sergeant passes to constable Anton the theft of the museum's most precious painting, portrait of a Chinese emperor's favorite consort. Various traces in the museum suggest an intruder connected to the port. Indeed, the Xmix trio confronts the robbers gang there.
The sergeant assigns Anton the kidnapping of multi-millionaire Bazuin from his home. All signs of a break-in have been removed by his distant cousin Gerda, who displays suspiciously theatrical mood swings. The Xmix trio accepts to deliver the 15,000,000 Euros ransom for her. Invisible Dax traces it back to the home, but gets in danger himself.
Anton passes to Xmix the mystery why patients of dentist Devries keep getting new dental complaints. The trio discovers, with Dax as test patient, a suspicious bag of candy in his practice and the malicious abuse method.
The sergeants hands the disappearance of aunt Eva who accompanied her niece to the circus to Anton. he delegates to Xmix, but before they can investigate Eva is back. However she reports she was in the clown-magician disappearing act, and lost watch and pearls. Xena volunteers in the next performance, only to be robbed too, while Exel can't resist presenting his trapeze act.
Anton is assigned by the sergeant but passes on to the Xmix trio the case of the prizes which are systematically stolen from all kind of contest winners. They decide to guard the village festival's pie eating trophy, a silver cup, which Dax actually wins. It's still stolen, but the cup being metal a magnet proves helpful.
A gentleman squire reports his kid daughter Anne-Fleur missing, presumably kidnapped but without ransom demand, since the hide and seek game during her surprise birthday party in the park. The sergeant assigns the case to Anton, who relies on the Xmix trio. They trace her to a mall, but find no abductor.
The sergeant got reports of payments with fake money all over town and passes the case to Anton. The Xmix trio deduces from chlorine traces on the counterfeited bills they may find the counterfeiter at the swimming pool. It is indeed a pool attendant. He gets wind of the investigation and sets a trap.
Farmer Geerts's race-horse, stallion Bliksem ('lightning'), is reported stolen on the day of a major race. The sergeant hands the case to Anton, the constable passes it to Xmix. The trio investigates the race-tracks. They find Bliksem's replacement is painted.
The sergeant charges Anton with the latest case of jewel theft. He sends Xmix to the victim, a baroness who lost a pearl string, a gift from her late husband, while she was at the hairdresser's. The trio finds a suspicious door there, and soon the thief.
A famous parrot with a beautiful singing voice is stolen from its cage in the city zoo. The case is again passed from the sergeant trough Anton to Xmix. The trio identifies and chases a suspicious staff member, who gets caged himself.
The archaeological museum reports thefts from its Egyptian exposition. The sergeant sends constable Anton to help Mr. Vanzijl guard a mummy's sarcophagus, who summons the Xmix trio to catch the burglar(s). They discover he's pretending to be the mummy.
The sergeant orders Anton to investigate why the tub water turned green and unfit for drinking. He appeals to the Xmix three. They fail realize the mineral water bottle vendor makes a fortune until they break into the water plant, finding there barrels of green pollutant and being apprehended by two goons who bring them to their boss, the vendor.