Things are simple: Pompeius fell victim to theft and his honored helmet and sword ended up in the hands of Gauls from the drunkard who sold them after stealing them. So according to the plan, we take a great tragedian and assign her the mission to play the...Frabala! Meanwhile, the mothers of Asterix and Obelix have arrived in the village because the two heroes have birthdays and, as always, mothers are present in both difficult and joyous moments, even to supervise if their buds have finally decided to get married! The fake Frabala arrives in the village but even fake she reminds Obelix of his great weakness, you know, not the one with the wild boar...The situation becomes complicated, slaps come and go with the same recipient as always, and the fathers of Asterix and Obelix await release from the Roman prison. Because nothing is hidden under the Gallic sky, the fake Frabala will be revealed and everything will return to its quiet path towards the long narrow table of the Gallic village under the caring night Gallic sky!...