Candice Renoir had put her career on standby for 10 years. When she returns from Singapore to resume service in a port town in the south of France, she feels a bit “rusty”. Despite the obvious defiance of her unit and a cynical superior who doesn’t make her job any easier, she is determined to turn her so-called weaknesses into strengths, solving the most complex cases with her common sense, her acute observation and her practical nature seasoned by a busy daily routine. Only Candice can catch a killer because she knows the chemical composition of a window-cleaning product or determine the hour of a murder from the cooking-time of kebabs… Candice is only naive on the outside, and nobody can resist her!

This is the story of four French friends: the Greek (an osteopath), Fifi (who lives with his mother), Fortuné (a West Indian) and Freddy (a gambler). They meet up regularly at a Parisian bookmakers’, their favourite haunt. Tired of frittering away the little spare cash they have, they agree to give up gambling. But no sooner have they taken this pledge than Fate intervenes, in the guise of the turf king, Monsieur Paul. The latter persuades the four friends to buy a champion racehorse, not knowing that it is in fact an old nag…

Jérémie, Aelita, Yumi, Ulrich, Odd and William return to their daily lives as students of Kadic College. But XANA, the multi-agent program that had become their mortal enemy and that they had managed to destroy in their previous adventures, reappears. The Lyoko Warriors reactivate the supercomputer in order to return to Lyoko, discover the reasons for this reappearance and put an end to it before the Earth is threatened again.

After studying in Paris, the young doctor François moves to Beauval, where single-family houses are lined up monotonously. He quickly becomes the focus of a group of young people, led by the charismatic Cédric and Matthieu, his assistant. The gang tries to escape their boredom with dangerous games at the edge of the forest. But things become bitterly serious when the body of a twelve-year-old girl is found and François is suspected.