The Cats Eyes investigate the origins of the artwork stolen from the Eiffel Tower, leading them to break into the vault of an art and antiques expert whose offices are located at the prestigious Hôtel de la Monnaie.

At the Château de Versailles, the Cats Eyes infiltrate a lavish Grand Siècle–themed costume auction to steal paintings that once belonged to their father.

The Cats Eyes plan a risky exchange of paintings along the Seine and aboard tourist boats, unaware that both traffickers and the police are closely following their every move.

The Cats Eyes must infiltrate the Bastion, the ultra-secure headquarters of the Paris police, to retrieve a video that clearly incriminates Tamara. But Quentin—and especially Gwen—are never far behind.

The Cat’s Eyes break into the expert laboratory at the Louvre to recover a painting held by the police, but they find themselves facing another team of burglars, far more dangerous.

The Cats Eyes finally get answers about what happened to their father and launch an assault on a 17th-century château to recover all the paintings supposedly destroyed in the gallery fire twelve years ago…

Still inside the Dalembert château, the Cat’s Eyes find themselves trapped between the vile owner and the police—just as they are on the verge of uncovering the entire truth about their father…