France, 17th century, during the reign of Louis XIII. When a dear friend, the Duke of Nevers, is treacherously assassinated by a powerful relative, a skilled swordsman, the noble Henri de Lagardère, seeks his rightful vengeance as he tries to protect the innocent life of the duke's last heir.
In 2023, Alexia, Tam and Sylia are reunited in the City of Light after many years apart. At the same time, a work of art that belonged to their father – who had died ten years earlier in a mysterious fire at his art gallery – reappears in a prestigious exhibition at the Eiffel Tower. The sisters decide to risk everything to steal the painting, in the hope that they will finally solve the mystery of what happened to their father.
