Wonder Woman takes a journey when the interdimensional travel machine (created by Doctor Cyber) used by Ares transports Diana and the entire island of Themyscira to a dimension in the year 50 BC, where Gaul is occupied by the Romans. Except in Armorica, a village populated by irreducible Gauls who resist the invaders. There she meets the village's greatest warriors: Asterix and Obelix. Ares' plan is to use the supreme conquest by gathering ancient relics from all provinces. And he hires Wonder Woman's villains to gather them all. Wonder Woman must entrust the two greatest Gaulish warriors to save the world.