Asterix and Obelix are tasked by Julius Caesar with accomplishing twelve impossible labors to determine the fate of their indomitable Gaulish village
When Getafix becomes an amnesiac lunatic after being struck by Obelixs menhir, Asterix tries to cure him, all while his fellow villagers are being conned by a phony soothsayer
Sent out to prevent Getafix from being thrown off the edge of the Earth by the Romans, Asterix and Obelix find themselves in America, encountering a Native tribe and a greedy medicine man