We are in 50 BC, all of Gaul is occupied by the Romans, only a village of Irreducible Gauls still resists the invader.

Today, Getafix is ​​testing a new potion, for a druid contest in the Carnute Forest. After Obelix's clumsiness drops an additional ingredient into it, the pot quickly grows out of control, releasing huge bubbles that trap the villagers. Quickly, the bubbles are blown away and the villagers find themselves scattered around the world.

With geolocation and augmented reality, the player must help Obelix and Dogmatix by collecting the characters from the comic strip, and by challenging the Roman legions which will stand in their way.