Chased by the Romans since her father, VercingÔetorix, surrendered to Julius Caesar at the end of the battle of AlÔesia, the young Adrenaline is entrusted to the good guard of Asterix and Obelix while waiting for the arvern chiefs Ipocalorix and Monolitix (who speak ch'ti) organize his escape to Londonium. However, the rebellious teenager has no desire to follow in the footsteps of her father (whose torque she nevertheless prized so much) and is quick to run away with Selfix and Blinix, the sons of the blacksmith and the fishmonger, with whom she befriends while not being shy to denounce the overconsumption of wild boars and the use of the magic potion.