After all, the voyage seems to offer an excellent opportunity for completing the young man's education. A group of neighboring tribe leaders has come together, determined to fend off the Romans in one last stand.
Unfortunately, Caesar has conquered Britain now all except for one small village that Anticlimax lives in. This is advertised on the English translation as 'The Greatest Asterix Adventure. Asterix, as it turns out, has a cousin in Britain by the wonderful name of Anticlimax. Asterix & Obelix cross the Channel to help the Britons repel the Romans.
Astérix and Obélix will accompany him back to Britain - as will Goudurix. The Romans have invaded Britain, but a village still holds out against them. When Jolitorax arrives to ask for help, the Gauls decide to give him a barrel of their famous magic potion. Their chief has entrusted them with the task of making a man of Goudurix, his young pain in the ass nephew recently arrived from Lutèce. At the village in question, Astérix and Obélix already have their hands full. One single tiny village manages to resist, but its forces are growing weaker so Corddlia, Queen of the Britons, decides to send her most faithful officer Jolitorax to seek aid in Gaul, in another small village famed for its dogged resistance to the Romans. At the head of his glorious legions he decides to invade the island that lies at the very edge of the known world, that mysterious land known as Britain.