In 79 A.D., Milo, a slave turned gladiator, finds himself in a race against time to save his true love Cassia, the beautiful daughter of a wealthy merchant who has been unwillingly betrothed to a corrupt Roman Senator. As Mount Vesuvius erupts in a torrent of blazing lava, Milo must fight his way out of the arena in order to save his beloved as the once magnificent Pompeii crumbles around him.
When their druid forgets how to prepare the magic potion, Asterix and Obelix must defend the village as Caesar plots to use a Gallic law against them.