One beautiful spring morning, a stranger appears in the Gaulish village. He's from Lusitania, the sun-drenched land to the west of Hispania which is also under the Roman Empire's thumb. This former slave, who first featured in The Mansions of the Gods, has come to ask our indomitable Gauls for help because he knows about the Magic Potion and its powerful effects. And so begins another adventure for Asterix and Obelix.