Asterix and Obelix celebrating their joint birthday party back in the Gaulish village – and some surprise guests have been invited! Meanwhile, Julius Caesar has to deal with his old enemy Pompey, who is looking for supporters among the legions stationed in Gaul. And just what part do two old friends play in the story – Tremensdelirius, from Asterix and Caesar’s Gift, and the lovely Panacea, first encountered in Asterix and the Legionary? After many exciting adventures, all is revealed.