The colonel calls on ROX to catch in the act French diplomat Belvoir, who is suspected of diamond smuggling. An undercover mission with Xavier as pilot and Olivia as attendant only yields a diplomatic incident for disrespecting diplomatic immunity. Yet later, Rikc's candy craving, despite his dentist-phobia, leads to a discovery.

Petroglobe chemical plant director Vranx and his executive assistant Els swear their firm has no part in the dumping of its toxic waste in a nature reserve, as it's all delivered to a processing company. Rox tails the two tricks which deliver it, but none is caught and all arrive at destination. Closer examination proves all the more dangerous.

A reputable doctor is the only one who has the cure for a mysteriously reemerged killer disease and demands a fortune per dose. Team Rox is ordered to find out what happened and make sure the health authorities get access to the vital formula, so enough can be made for everyone who needs it.

The colonel calls on ROX to pretend they'll deliver ransom for a governor's kidnapped daughter, but in fact seize the abductors. Analyzing the ransom video and soil sample on the kidnapping site allows Rick to work out the main kidnapper is employed in a specific demolition firm. Xavier and Olivia go undercover and voice analysis shows Tommy is their man. Yet the traps they set keep going wrong, Olivia even gets caught. The reason is treason.

The most advanced chip, which can crack any code in a computer it's physically attached to, is stolen from the Home ministry. The only security video recording shows it was the work of a masked master climber who got away by motorbike. His trail leads to wheelchair-ridden George's mountaineering simulation club, so Rox goes undercover there. Prime suspect is champion Nicolas Klaus, who gets fired as instructor for recklessness, but he has an alibi for the actual use, during which missile launch codes are stolen.

Justice minister Pauwels receives an anonymous demand to release major criminal Durinckx, otherwise his favorite niece Chloe will be hurt, but he won't negotiate with terrorists or cause a panic. She's in boarding school, so Rick goes undercover as the nerd's fellow pupil and potential best friend, Xavier as school handyman and Olivia as interim history teacher. The coach is naively in cahoots with an external fiend, who impersonates a guest lecturer.

The colonel calls upon the team to investigate whether rock star Bobby George's charity food distribution in Africa is a cover for illegal arms trade. The trio poses as a rock band to accompany him at a benefit concert. Bobby's manager Steve welcomes them warmly and everything seems in order. Luckily, hungry Rick opens one of the food parcels and discovers a grenade inside just before a new shipment leaves the airport.

The colonel orders ROX to investigate why several top scientists recently joined CEO professor Adamo's NV Apocalyps, a company which pays nobody, after which seized all social activities. The team finds he's combining inventions for a project Apocalyps, to eradicate humanity except his select group, for which a huge bunker is being built to survive his planned atmospheric disaster by massively releasing a toxic gas.

A robot in the nation's top-secret nuclear base malfunctions. Instead of cleaning, it starts executing the program for World War III, firstly evicting all 50 military guards. Team ROX must infiltrate trough the sewage exit, disable the robot and stop the launching of 20 missiles on capitals worldwide. Xavier manages the feat, but ignores the robot has a backup battery, so it starts all over.

Just before the trial of bank robber Daenens, his court file disappears mysteriously, like a few major cases before, all pleaded by the same attorney, who thus can achieve purely technical acquittals for dangerous fiends. Rox goes undercover and discovers the only thing the files have in common is being sprayed with a non-labeled detergent by the courthouse's extremely rude cleaning lady. Rick works out how that does the trick.

Rox is mobilized to catch the mysterious perpetrators of a serious of recent mystery thefts from well-guarded museums, preferably before the discovery of the latest causes diplomatic embarrassment at a prestigious exhibition opening. The only clue leads to Pingi Park, a small private zoo. Xavier and Olivi go undercover and find enough clues, combined with Rick's crime scenes analysis, to work out the thief used Billy, the tame monkey trained by a zoo keeper to retrieve things. Yet the monkey-coach isn't the actual robber.

The only lead about stolen nuclear fuel rods, enough for a terrorist group to make a dirty bomb, is to Barry's rally club. Xavier poses as a cocky but weak pilot with Rox under-performing even worse, so as to win Barry's confidence, while Olivia is hired as his mechanic cahoots Benny and Willy's apprentice, actually just thanks to Rick cuing every move.

Rudolf Tiller, CEO of a major polluting company, is kidnapped by the mysterious eco-terrorist ninja 'Green Cobra', so his daughter Daisy takes charge. The only trail leads to a secluded, reputable ninja school, so Xavier and Olivia join their for undercover investigation. Following the masked suspect proves quite dangerous. Back in HQ, Rick also has to fight horoscope superstition.